There are several uses or meanings to this word, and in general many of the previous ones suffice. But only a few address its vintage slang connotation which is not currently in use much. To wit...decades ago, the word scum referred to semen. It was combined with the word bag to denote a condom - hence; scumbag. A scumbag was a necessary evil but not at all noble, ad was discarded immediately after use - having served its purpose and with no further use expected. In time, an undesirable person might be referred to as a "scumbag," and the emphasis on scum being a form of lowlife began to emerge. Because it was not considered profanity, the word eventually became acceptable for broadcast television, and over time, its original meaning evolved or morphed into what it is today. The use of the word has become commonplace, but persons of my generation - who still remember the original connotation, sometimes flinch a little when we hear children or parents saying it casually. It's not a bad word per se, but it's not a pretty one either. And God forbid that one would be considered to be a scumbag.
Hey Joey, do you have an extra scumbag with you? I ran out and I'm planning to fuck Mary tonight and she won't let me in without a rubber.
by carbuncle May 13, 2014
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the #2nd best pvper on cosmic craft. tosses everyone on the server
Scum killed CriiimZon again, not surprised.
by b90 July 8, 2019
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Scum are any of the following foul things:

-Miners.
-Tradies.
-Hi-Vis.
-Cert I, II, III.
-Pink labcoat bitch.
-German potatoes.
-People who always talk about working for spotlight.
-Snitches.
-That creepy cunt Amahd or however you fucking spell it.
-Amahds parent's are fucking cousin's.
-Windows.
-Mining students.
-Mining signs.
-Anyone who doesn't like Justin Bieber shirtless.
-People who say 'gay'.
-Non-Manly straight men.
-Fucking Twelvies.
-Hipsters.
-Extreme feminism.
'oh yuck look at that fucking scum'

It was a group of mining students walking past wearing Hi-Vis followed by tradies, amahd, spotlight workers and cert III students.
by Scholar of scholars. December 9, 2016
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a lower level of society, generally picks fights with things weaker than itself. often supporting Newcastle United Football Club.
"Did you see the reaction after the match the other day?"

"yeah i heard the Scum tried to pick a fight with a horse - doesn't surprise me"
by Alan Scumbag Shearer April 29, 2013
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Any police that turn up just when things about to kick off or shits about to hit the fan. Any cop who nicks your stash, baccy or booze. Any cop who breaks up a fight were the kid getting fucked up is a dirty fucking chav, scene kid or emo pussyhole.
Clear out the scum is here!!!
Fucking scum just taxed my baccy!!!
The scum are raiding drinking fields tonight!!!
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Liberals. Especially American liberals. People that voted for Barack Obama or Hillary Clinton. Al Gore.
Liberals are scum.

Liberals are filthy low life vile disgusting scum.
Fuck liberal scum.
by Jo4 November 16, 2016
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Adjective
- one who is French, Hairy, Smelly, Profusely sweats and generally portrays unsavory personality traits such as having multiple girlfriends and destroying the delicate emotional psyche of the females they encounter.

- Andrew Joseph Fontaine is a well known scum from the new Millennium and is often regarded by his peers as an avid scum master.
- Andrew Joseph Fontaine is the Queen of Scums.
by Scum Hunter 21 January 3, 2011
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