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.
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."
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!!!!! 🤜 🤛