Jiffing is a sexual act regarding furries. They smother peanut butter on their genitals of there fur suit and lick it off.

Briefly, "the realization that each random passerby is living a life as vivid and complex as your own." Originally from the Dictionary of Obscure Sorrows, which has a lot more beautiful neologism definitions like this you might enjoy.

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".

bar hopping. The source of the word comes from Thank God It's Friday, or TGIFing, when shortened in speech becomes jiffing.

The act of posting mostly random gifs and/or images accompanied with out any captions or context.