2
When your jeans are so tight, it makes it look like you are making your ass flex. Most commonly happens when you are wearing skinny jeans.
Person 1: Oops I dropped something.
(Bends over to pick it up.)
Person 2: Nasty! What are you trying to do an assflex?
Person 1: No!
(Bends over to pick it up.)
Person 2: Nasty! What are you trying to do an assflex?
Person 1: No!
by googoogoodolls January 06, 2011