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.
Greasefarting is the act of farting when the anal cavity is experiencing conditions such as "swamp ass." Generally, it results from a lack of cleanliness of the top of the ass crack down to the gooch(a.k.a. skin-bridge).
After a long day of hot, sweaty work and three bowls of chili, John unleashed his greasefarting ass upon the unsuspecting welfare mothers standing in line for government cheese.
An ugly yet slutty teenage/tweenage girl who hangs out at shopping centers on friday and saturday nights. Known for their greasy appearance, they prey on skinny yet pugnacious teenage/tweenage boys who try dress like gangsters.