Derived from the words “cum” and “sweat” when mixed together during sex.
“I have swum all over my sheets and legs”
“Omg i am covered in swum”
by CourtneyMoulton June 21, 2021
the word you use when you don't know if swam is a word
I swum to that wall
by Fuckerpunch June 7, 2015
To swum at a person or to be swum; it is a swear word. Swum means that you are either an idiot or just plain annoying.
Fred: OMG THE WATER'S WET!
Bob: What a swum.

Boss/Paul: FINISH YOUR WORK BY YESTERDAY!
Robby: Dude, he's totally swumming me.
Bob: I know dude, totally.

Ted: Yeah, he swumed her so much.
Lary: Really? I had no idea. I thought she really liked him.
Bob: No, he was such a swum.

Craig: OMG! I LOVE CAKE!
Bob: What a swummer!
Paul: I know. He's such an idiot he should be doing his work!
by MadThree April 12, 2011
Very cool, excellent, on-trend, great

(A new word to replace/replicate the above definitions which is all encompassing)
"the ease with which that dude plays that guitar and manages to surf a wave at the same time is very swum
by Very swum November 8, 2017
A lofi god whose w a v y beats reign supreme over any organized sound in the known cosmos.
SwuM better fucking drop an EP soon.
by SwuM October 11, 2016
a widely used gramatically "incorrect" past form of swim. The correct past form of swim is swam, but it sounds stupid to say, so we usually say swum instead.
21patrick60: dude i wish we had swum at your grandparent's instead of playin gears all day & givin up on wave 19

bob: wait i hav an idea! lets hit eachother with lightsabers like mature 15 year olds!
by 21patrick60 June 11, 2009