Blocky: Hey guys! For a prank, use Firey's ferris wheel stand to dispense water on Gelatin! He'll get ultra soggy, unable to do anything! When recovered, repeat! Isn't that funny? Hahahahahah! {This program was brought you by Blocky's Funny Doings International.}
Initially used to describe when on a night out you have too much to drink and do something embrassing, throw up or have to go home early because your too drunk.
Its use has now expanding to describe generally when unfortunate things happen or things go wrong e.g. things breaking, arguments, not feeling well, getting in a bad mood.
"I went out on saturday and had a funny do, had to go home at 12, too much vodka"
When your phone has broken: "My phones having a funny do"
When youve had an argument with someone: "Im having a funny do with Tom"
"Ive got so much work to do, I think I might have a funny do"