when the butt cheeks are completely unflexed (i.e. when one is bent over or walking up stairs) and you shove your pointer finger and middle finger up the others rectum using your thumb to cup the butt cheek.
"yesterday when I was walking home I went to pick up a dollar that I found on the sidewalk and a bum came up from behind me a shoved his finger up my ass."
"oh man, a bum gave you a tony bologna?"
30👍 35👎