Thrum Bone

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 finger, bum hole, brown finger


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