Refers to the crevice located beneath moobs where sweat and dead skin cells create a playground for bacteria, and can create body odor unlike any armpit.
"What's that smell? Are you wearing deodorant at all?"
"Yes, I am... *sniff sniff* Oh, it's my titty pits."
"Yes, I am... *sniff sniff* Oh, it's my titty pits."
by LiLi Shmet May 23, 2010