Definitions by Zer0 the Depressed

DD 

To others, it's gigantic, but according to the studies, the average cup size for the U.S. Is DD cup. So don't make a FAQ BOI reason for wanting them because they are "big", no they aren't, they are average

A - BRO! Her tits are gigantic! Has to be DD!
B - bro, that's average

DD by Zer0 the Depressed October 15, 2017