A paradox created when a girl wears a tight shirt to create an illusion of bigger breasts. Tighter the shirt, the bigger the breasts look. Essentially achieves the same effects of a push-up bra but different in a sense of novelty. Push-up bras are fucking noticeable but the tight shirt reaveals the actual size of their breasts.
For example, a girl who is a B-Cup might look like a C-Cup due to the T-Shirt Paradox. However, the paradox doesn't apply to A-Cups. No matter how tight the shirt is, their breasts still look like an A-Cup.
Daquan: "Yo Suzie's titties are bigger than usual today!"
Harold: "It's called the fucking T-shirt Paradox. It just makes her titties look bigger! don't fall for it you dumb shit!"
There always are huge boobs on the chick wearing the t-shirt with a stupid slogan in the sidebar page of urbandictionary. The boobs are big enough its worth staring, but the t-shirts are never funny enough to click the link.
probably just look in the side bar of this page
or
"wow, that t-shirt is so dumb only a hopeless loser would ever buy it. but check out those sidebar t-shirt ad boobs!"
Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton). The word of your choice will be printed on the front of the shirt, there is no definition printed on the back.
Person 1: Man I got the urban dictionary t-shirt for the word damn. Total ripoff. The definition of the word wasn't even on the back!
Person 2. Should've read this definition.