When someone is so fat they have what appears to be tits on their back. Multiple sets are also common.
While walking behind someone to say "Oh my god he's so fat he's got back titties."
by MacRae November 6, 2006
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back fat so big it looks like titties on your back. In some women, they are actually bigger than their real titties.
"Damn those are some big back titties"
by lkmoose87 November 17, 2007
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When a criminally fat woman wears shirts far too tight for her pudgy frame, her bra straps push out on enormous mounds of flesh. Thus, these sweaty appendages take the appearance of floppy tits.
I was so busy staring at that whale's back tittys that I nearly killed her with my vehicle
by 1_tough_hombre January 30, 2008
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When a very large women has back tities...and some one "fake Dr." diagnosis the women with Back-titty-ocous.
Dustin: hey Jonh did you see that women with Back-titty-ocous?

Jonh: hell yea, I wanted to back titty fuck her.
by Rockstardmc September 8, 2010
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When a woman is so fat that her back looks like it has tiities on it.
" Man that Titty backed hoe is fucking trailer trash dawg"
by Mikenator32 May 17, 2017
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