18 syndrome
A condition that afflicts a growing number of newly-minted legal adults. It is characterized by the assumption that reaching the age of majority is carte blanche to do whatever one wants, regardless of any amount of protest from parents, authority figures, or even common sense. Most sufferers are observed stating something to the effect of "I'm 18, so I can do what I want!" upwards of twelve times daily, usually preceding a poor decision or the planning of one. Ironically, sufferers of 18 syndrome are often the most poorly-equipped members of their peer group when it comes to making decisions. This condition is alarmingly prevalent among 18-year-olds who, despite being adults legally, lack nearly every quality that makes one an adult practically, e.g. responsibility, self-sufficiency, and maturity. In fact, the vast majority of sufferers depend on their parents for their livelihoods and still have close to a year of high school ahead of them. It afflicts both genders more or less equally, but a good rule of thumb is that it tends to produce bad decisions that cause physical harm in males and ones that cause emotional harm in females. Thankfully, beyond annoyance to others and the repercussions of the bad decisions it can frequently encourage, 18 syndrome is mostly harmless, and it seldom lasts beyond the age for which it is named.
The Urban Dictionary Mug
Good quality, just as pictured. Very pleased with it!
Having my first cup of coffee in the new cup. Good idea to add new terms through individual contributions.

10/10 Looks exactly like the preview. Shipping was fast.
This is for my granddaughter whom I used to call cutie patootie until she found out another meaning for patootie. Then she didn’t like the name so much! This will be a perfect gift for her! She is 16.
Love the cups :) It reminds us of our sweet momma. I thought everyone knew the word "mommicked" but evidently it is an Eastern North Carolina thing...My sisters and I all married Northerner/ Yankees and they had never heard of the word. Thank you for a tender memory.
Cup came in one piece and looks as nice as it does in the picture! Only note is just be mindful of any typos in the description of the definition, they will show up on the cup too! Other than that, no complaints!
This reminds me of the amazing teams i worked in!
great experience, with fast delivery. Thank you!
my grandma loved it!
My grandma is HOOKED
Based mug
This mug makes me happy :) reminds me of so many funny high school memories!
The mug came quickly and we love it!
These mugs are always good. I usually choose the neon green!
The mug is pretty and the writing on it is clear. It is of good quality and it makes me smile.

Well madder nice print. 8 0z cup. I'd prefer a mug but will be ordering 3 more. Just my cuppa tea (or coffee). Americans always make fun of some of the things I say. Recently my brother and I were talking about the Trawna Maple Leafs. I decided to look it up and sure enough there is was Trawna the city I grew up in. Now who has the last laugh.
I ordered pink but got purple, and the text wasn't very clean, but overall, it is a mug.
It was a gift for my sister, who wrote it. She loved it and so did I!
pushin 🅿️ w this mug😩
Got a ligma mug it's my favorite mug now
Review Details
Pro Customization
Create unique products with your own words and definitions
Live Preview
Personalize Your Design
Debug: Product Metadata
| Key | Value (click to copy) |
|---|---|
Copied! | copiedKey = null, 1500);
"> |
Return Policy
Made Just For You
Each product is custom-printed with your unique text, making it truly one-of-a-kind.
Defect-Free Guarantee
If your product arrives with printing defects, damage, or quality issues, we'll send you a free replacement.
Custom Orders
Due to the personalized nature of your order, we don't accept returns for change of mind or sizing issues.
Questions about your order? Contact our support team for assistance.