Guest strip from Stars Overdose.
D13 = DIE
l33t35t = leetest
ph33r my mad skillz = fear my mad skills
l33t m45+3R = leet master
The other Quake players are Francis and Marcy from PvP, Tycho and Gabe from Penny Arcade, Hot Soup from Lethal Doses, and Christian and Mr. Madsen from Little Gamers.