there are a number of words and phrases we've tried to (re)introduce to the world at large, but i can't remember most of them, so here's a selection:

spliff, meaning cool: that's so spliff!

cow in a can as an expletive: oh, cow in a can, i've lost my last black sock.

my party is not party to your party's party, to be said to someone when they (your party) are doing something (party-ing) so plain odd that you (my party) doesn't want to be associatied (party to) with them. (phew.)

we may actually have introduced the word "random" into widespread use, but we're not entirely sure. we were probably too busy being random to notice.