A pejorative term used to imply someone enjoys sticking their fingers up someone else's anus, most commonly used as a gay slur. The name comes from pin tumbler locks as you need to stick a key or pick into the lock to move the pins to open the lock. The finger would be the key and the ass is the lock.
by Fyce September 2, 2017
Get the Bum Tumblermug. Little wannabe gang members that hang around parramatta and post tiktoks about themselves they are all under housing comission and their fathers dropped out in year 8. their fathers are either drug dealers or tradies there is no inbetween.
by harrygaussie November 30, 2022
Get the Parra Bummug. 
a sexually transmitted disease known as bum aids coming from hiv how ever you can only get this by having sex with a ranga comonly known as a fat peice of shit you can die idk
by rangaman July 17, 2021
Get the bum aidsmug. 
by Propa Bum February 8, 2018
Get the Propa bummug. by Only in Hedland October 13, 2020
Get the bum nutmug.