Definitions by Modern Mongoose

20 and 3/4th 

The age where you must be a proper adult, otherwise your brother will disown you,

not cool, brother.

Hey bro, if you don't get your 20 and 3/4th together, I'm going to dump some barbecue sauce in your car dawg.

20 and 3/4th by Modern Mongoose August 23, 2019