Titties that are being held up by means such as a girls arm to make them look less saggy or cover up the fact that they are fat tits; titties that are big, but by no means good looking; tits on a girl that are huge, but only because she is obese. technically they are "big tits" but fatty tits is more appropriate
GUY: bruh, i work fast
GUY 2: LMAO, that's what fatty tits said
damn look at that bamf holding that girl's purse
bitchassmotherfucker is too long, i know you're such a bamf