commonly used by people in the south; after somebody gets scum (high) as fuck this is what you call them
Joey: *just finished smokin a phat blunt* *walks over to Tim*
Tim: “Waddup scum bum? How you feelin?”
Tim: “Waddup scum bum? How you feelin?”
by NikkiMB123 July 24, 2018
Get the Scum Bummug. 
Left over, watery liquid residue following a bum wee. Can be mixed with sweat in its fermented state. Often, when over saturated, trases of urine can also be found in the brew
by Crockodile Dundavies November 13, 2022
Get the Bum brinemug. by Slavic Pals 2022 August 11, 2022
Get the fin dun sum bummug. 
by chheese May 19, 2025
Get the Bums-Atzenmug. 