The act of dressing oneself and an accomplice in furry animal costumes and having them piss, shit & come on you. The soiled party is known as the "jiffee"; the soiler as the "jiffer".
As seen in "Stars Wars: The Return of the Jedi":
C-3PO - "They seem to regard me as some sort of...god. It'd be alright if I could only stop them jiffing all the time, look there they all go again!"
bar hopping. The source of the word comes from Thank God It's Friday, or TGIFing, when shortened in speech becomes jiffing.
What do you want to do on Friday afternoon? Let's go jiffing!
The act of posting mostly random gifs and/or images accompanied with out any captions or context.
Person A: "Why is this guy spamming random gifs?"
Person B: "He's just jiffing."
idiot in UK like slang
a dumb person
"shut up you jif"
or
"ricky your such a jif"
1: A brand of peanut butter
2: mistakenly said for GIF
1: I use JIF peanut butter to put on my PB&J.
2: Only idiots say "JIF" for GIF.
Jiffing is a sexual act regarding furries. They smother peanut butter on their genitals of there fur suit and lick it off.
Person 1: Hey I just got a thing of peanut butter
Person 2: Jiffing time!!