WURF
WURF is a Wet Unicorn Rainbow Fart. Unicorn rainbow farts bring happiness and joy to all those that observe them, and wet ones are funny so therefore a Wurf is a funny happy joyous thing that can be used as a general purpose happy joy word, meaning to cheer up, exclaim the kind of mood one is in, or exhibit an overall sense of wellbeing.
Jim: Man I hate Mondays, it's rainy and crappy out and I owe so much money to the IRS and my girlfriend just left me.
Bob: WURF!
Jim: Hahaha, thanks, I needed that! :)

Susie: How are you feeling today Merv?
Merv: WURF!!
Susie: Good to hear, me too!!