bum finger

The 11th finger that comes out of a girl's bum to enter a guy's bum while they are having sex.

The sex was pretty bland until her bum finger crept out.

by Sebastian Rofo December 7, 2013

Fingering Bum

An expression used by people from North Reading meaning to procrastinate or be generally unproductive and lazy.

"What have you been doing today?"
"Nothing much, just fingering bum"

by Jordan Dozen January 24, 2021