What is Thrum Bone?
1.
The act of forcing ones thumb into a partners rectal passage, without the act being discussed or pre arranged.
There is a high chance that this act is will be made by a opportunist and stealthily approached.
"Hey Pash whats that over there?"
"oooooh my god what the fuck was that?"
"i just thrum boned you dude!!!"
See
Random Words:
1.
The long dangly things between your mothers legs.
Lee: Where were you last night Ryan?
Ryan: Ehh, I was playing with your mothers twap..
