What is Shit-tits?
1.
One (A female) who stuffs shit into their bra.
"That chicks got shit-tits!"
See
2.
When a man is shitting on a girls chest gets of aim and accidentally shits on her tits.
Girl: My boyfriend is such a dumbass he was shitting on my chest last night but he gave me shit-tits instead.
Friend: Girl you better dump his ass.
See