1 definition by El_bambino
The grime formed by the accumulation of sweat and friction that lies under the breasts as they lay on the torso. Women with bigger boobs have in general more titty grease than those with small boobs. Girls with mosquito bites boobs will have no titty grease.
I was banging her doggystyle and tried to grab her titties from behind but my hand slipped from all the titty grease she accumulated.
by El_bambino May 6, 2010