A human who's life is devoted to cumming or obtaining cum. Cum has consumed this person and they have given up everything for cum.
Guy 1: Bro I used to like Sarah but she's just a cum bum now.
Guy 2: Dude I know she drained me last week!
Mom: Gary I caught Billy passed out in the bathroom covered in cum!
Dad: Yeah he's a cum bum now.
Guy 2: Dude I know she drained me last week!
Mom: Gary I caught Billy passed out in the bathroom covered in cum!
Dad: Yeah he's a cum bum now.
by Urbandictionary6911 June 16, 2022

The last ounce or 1/2 ounce of an alcoholic beverage left in a drink. Bottom of the drink or backwash of a beverage. Scuzz.
by Hemrocker June 21, 2019

by Lovebun27 November 8, 2022

i can’t believe yoon bum didn’t leave when he had the chance.... sangwoo deadass even called him “mom” when they were fucking ?? whY HASNT HE LEFT
by mothman2009 December 20, 2018

This term refers to when Bums, or homeless people, hide the money they have begged that day up their asses so the other Bums won’t steal it when they are passed out drunk.
by Xilocanth June 4, 2019

by smellysnake January 11, 2014

Someone who frequently and consistently makes minor mistakes. They can be harmful or harmless, but they tend to provoke fierce criticism by other people. A bum may also consistently do harmful things as a joke, oblivious to the obnoxious nature of their actions. Bums often lose important items at inopportune times, and they are always showing up late to meetings.
"Aidan, you lost the receipts we gave you? You bum!"
"The bum Matthew is cheating again and he won't apologize."
"Max didn't submit the grant application on time? That bum!"
"The bum Matthew is cheating again and he won't apologize."
"Max didn't submit the grant application on time? That bum!"
by driversbehindthelines July 19, 2020
