look up any word, like bukkake:
The man/female covers their arm with lube the receiving partner gets in doggy style position and spreads their asscheeks the lubded one punches their anus and in one motion shoved their entire arm into the receivers anus
My ass hurts tom gave me a one-arm willy last night
by dookie69999 April 09, 2014

Words related to one-arm willy

anal arm live owwwww sticky