If you’ve ever stood in line at a Swig drive-thru and overheard someone order a “Dirty Little Secret,” you’re probably wondering: what exactly is in this fan-favorite drink and why is everyone obsessed with it?
The Swig Dirty Little Secret is a bold and flavorful dirty soda that combines the richness of Dr Pepper with coconut, pineapple, and vanilla cream.
This drink is known for its smooth tropical taste, creamy texture, and fizzy bite. Inspired by The Secret Lives of Mormon Wives, now streaming on Hulu, this drink blends pop culture, sweet indulgence, and Utah-born soda culture into one irresistible cup.

Swig Dirty Little Secret Drink Sizes & Prices
The Dirty Little Secret is available in five standard Swig drink sizes. Here’s a breakdown of the updated 2026 prices:
| Size | Ounces | Price |
|---|---|---|
| Kids Cup | 12 oz | $1.50 |
| Small | 16 oz | $1.75 |
| Medium | 24 oz | $2.20 |
| Large | 32 oz | $2.45 |
| Extra Large (XL) | 44 oz | $2.65 |
The 24 oz and 32 oz sizes strike the best balance of flavor and value, especially when ordering with extra cream or pebble ice.
Ingredients in the Dirty Little Secret
This secret menu drink is made with just a few high-impact ingredients that come together to form one of Swig’s most unique creations.
| Ingredient | Purpose |
|---|---|
| Dr Pepper | The fizzy cola base with cherry & spice notes |
| Coconut Syrup | Adds tropical smoothness |
| Pineapple Syrup | Adds bright, tart sweetness |
| Vanilla Cream | A rich finish that balances the drink |
This combination creates a drink that is tropical, fizzy, creamy, and smooth—truly a dirty soda unlike any other.
Nutrition Facts
| Nutrient | Kids (12 oz) | Small (16 oz) | Medium (24 oz) | Large (32 oz) | XL (44 oz) |
|---|---|---|---|---|---|
| Calories | 200 | 220 | 250 | 280 | 300 |
| Total Fat | 3g | 4g | 5g | 6g | 7g |
| Saturated Fat | 2g | 2.5g | 3g | 3.5g | 4g |
| Sugar | 35g | 45g | 55g | 65g | 75g |
| Carbohydrates | 40g | 48g | 60g | 70g | 80g |
| Protein | 0g | 0g | 1g | 1g | 1g |
| Caffeine (approx.) | ~20mg | ~28mg | ~42mg | ~56mg | ~77mg |
These figures are estimates and can vary based on modifications such as diet soda, sugar-free syrup, or extra cream.
Allergen Information
Wondering if the Dirty Little Secret fits your dietary needs? Here’s a breakdown of potential allergens and sensitivities:
| Allergen | Contains? | Details |
|---|---|---|
| Milk / Dairy | Yes | Present in vanilla cream topping |
| Soy | No | Not an ingredient in the standard recipe |
| Wheat / Gluten | No | All base ingredients are gluten-free |
| Tree Nuts / Peanuts | No | No nut-based ingredients used |
| Egg | No | Egg-free recipe |
| Caffeine | Yes | From Dr Pepper base (~2.5mg per oz) |
Always notify staff if you have severe allergies—they can often use clean tools or recommend substitutions.
How to Order the Dirty Little Secret at Swig
Ordering this drink is simple, and it can be fully customized to your preferences.
Step-by-Step Ordering Guide:
- Choose Your Base Soda
- Default: Dr Pepper
- Optional substitutes: Coke, Diet Dr Pepper, Sprite, Mountain Dew, Root Beer
- Request the Dirty Little Secret Flavor Combo
- Coconut + Pineapple + Vanilla Cream
- Pick Your Size
- From Kids Cup (12 oz) to XL (44 oz)
- Customize Further
- Light or extra syrup
- Sugar-free coconut or pineapple
- Extra cream
- Fresh lime
- Pebble ice
- Whipped topping
Want to reorder easily? Use the Swig app to save your perfect combo.
Frequently Asked Questions (FAQ)
1. How much does the Dirty Little Secret cost?
Prices range from $1.50 (Kids Cup) to $2.65 (44 oz Extra Large).
2. Can I get it with Diet Dr Pepper?
Yes, just ask to substitute the base with Diet Dr Pepper for fewer calories and sugar.
3. Is it always available?
Yes, the Dirty Little Secret is a core Swig menu item, available year-round at all locations.
4. What’s the most popular size?
The 24 oz (Medium) and 32 oz (Large) are the most commonly ordered sizes.
5. Is there a sugar-free version?
Yes. Ask for sugar-free coconut and pineapple syrups, and choose a diet soda base.
6. Does it contain caffeine?
Yes, from the Dr Pepper or any caffeinated soda base you choose.
7. Can kids drink it?
Yes. It’s a non-alcoholic beverage and available in Kids Cup (12 oz) size.
8. Does it contain dairy?
Yes. The vanilla cream contains dairy. You can ask for it to be removed or substituted if needed.
9. Can I customize it further?
Absolutely—Swig is known for customization. Add fresh lime, extra cream, whipped topping, or switch sodas.
10. Is it gluten-free?
Yes. All standard ingredients are gluten-free.
11. Can I order it on the app?
Yes. The Swig app lets you build, customize, and save your Dirty Little Secret order.
12. Is it available for delivery?
Yes, through services like DoorDash, Uber Eats, or directly via the Swig app.