X-TREME
One better than "Extreme". Only those willing to take things to their furthest would dare do something so extreme that the "E" at the start of the word is too shit scared to stay and watch, running home to it's mum.
Dude A: "I'm gonna go to bed. Good Night dude."

Dude B: "I'm going to go to bed TO THE X-TREME!!!!!"

Dude A: "Grow up."

Dude B: "I'll grow up, grow up TO THE X-TREME!!"

Dude A: *sigh*

Dude B: *sigh "TO THE X-TREME!!"

etc.