I saw some arena team names that I thought amusing.  I wrote down a few.  If you have seen some good ones, share! 

Fel Iron Chefs
just get it over with
You had better beat us
Eleven Inches Unbuffed
I Blame the Healer
WHY DIDNT YOU BUBBLE
clever team name
Never go full retard
lets hope this works
Were Ret Tarded
DODGE THIS
undergeared alts
ROGUE ON ME nvm im dead
if you lose to us u fail
Player vs Pillar
Kill the lock first (they have a lock)
will pwn for food
Shaman had a hex change
Lincoln Wiped on Opera
WE R RLY RLY GUD
Chicken Fried Mice
Hardcore Pwnographers
SOMETHING ORIGINAL
WhySoSerious
Terrible Twos
MMOs befor HOs
Juggernuts
ThoughtSheWasLvlEighteen
Worst Two Pallies Ever