The simultaneous occurrence of flatulence and ejaculation. Particularly common among the elderly who have weak bowel and penile control.
Jenny: Mom! Grandpa is fumming all over the place again!

Karen: Well, grab some towels and start cleaning him up!

Jenny: Ewwwww! I don’t wanna clean up grandpa’s nasty fum! It stinks!

Karen: Shut the fuck up and clean your grandpa’s fum or you’re grounded!
by Hammer of Jesus March 02, 2020
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The act of farting and having semen come out because the person had just had anal sex.
After the anal sex scene, the actress ate some beans and started fumming to clean out her asshole.
by Luke the Snook May 18, 2011
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An amalgamation of fingering and bums, fumming is the act of inserting one's finger into the anus for pleasure
Eg. D introduced M to the wonderful world of fumming last night and now she can't sit still

I couldn't concentrate in lectures thinking about that fumming I got last night in D's car
by Fish chow mein February 26, 2019
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Jerking your flaccid cock so quickly that you blow your load before you even get hard.
Guy 1- Dude I need to release some tension
Guy 2- But we need to be out the door in 2 minutes, we don’t have time?!
Guy 1- Hold my drink and watch this
(40 seconds later)
Guy 1- IM FUMMING!!!!
Guy 2- DUDE!!!!! 🤜 🤛
by Sheldonia March 17, 2021
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1.The title of a spanish song.
2. A slang term for sex
Tom and Ann when to go Fum, Fum, Fum
by Sollymander123 December 10, 2008
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Chum is fum. Also, fum is chum. Krabby patties may also be fum. Coined from the television series, SpongeBob SquarePants.
"This chum is disgusting, but with a catchy slogan like 'Chum is Fum,' you can't go wrong!" Fred Fish.
by DolphinJumper July 19, 2009
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the type of female that acts like they are better than other girls but are just a dumb cunt and is a hoor
have you seen sharkisha, she's a fum
by hot_but_at_hot October 24, 2019
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