The act of being fummy. To bludge. What one does at work after Friday's pub-lunch. Doing bugger all and dragging everyone else down with you.
Another, less common, form of fumming involves sitting next to a colleague while he is on the phone to a customer and scrawling all over his notepad whilst giggling. The notepad should end up containing a crude caricature of the colleague's sister with the words, "Please wear pants to my party" in a speech bubble. This slightly more obscure form of fumming can often be the most effective as both parties usually end up imploding in a fit of giggles.
Another, less common, form of fumming involves sitting next to a colleague while he is on the phone to a customer and scrawling all over his notepad whilst giggling. The notepad should end up containing a crude caricature of the colleague's sister with the words, "Please wear pants to my party" in a speech bubble. This slightly more obscure form of fumming can often be the most effective as both parties usually end up imploding in a fit of giggles.
The Letter M: "So, Soulless Ginge, what have you done today?"
Soulless Ginge: "Nothing mate. I've been fumming all day today."
The Letter M: "Okay. Let's sit around with Angry Italian and make knob jokes."
Soulless Ginge: "Nothing mate. I've been fumming all day today."
The Letter M: "Okay. Let's sit around with Angry Italian and make knob jokes."
by The Letter M July 28, 2008

When a male reaches orgasm and begins to ejackulate into their mate. Suddenly a uncontrollable release of gas from the anus is released with each ejackulate squirt.
by Nathanvancity March 4, 2014

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!!!!! 🤜 🤛
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

A fum is a fat ugly midget, it’s someone who is annoying or being annoying and is commonly used as an insult
Hey stop being such a fum
“OMG isabella and taryn are such fums”
‘Yeah I know right, they’re such fat ugly midgets’
“OMG isabella and taryn are such fums”
‘Yeah I know right, they’re such fat ugly midgets’
by Trinitystant August 31, 2020

Pre-Cum, a fluid that is discharged from a penis when it's aroused and usually occurs right before ejaculation.
Is the fum coming out of your dick?
by NotSamC December 4, 2021

by Vengermaximus August 8, 2011

A fum is a musical instrument,consisting of a rubber band stretched across a cat's ass,and played with one's tongue.
by evilstevil August 5, 2009
