Reference to "Of Mice and Men", namely the ending where George tells Lennie to look at the rabbits so he can shoot Lennie while he's not looking. Basically means the same thing as go play in traffic; go jump off a cliff, die, etc. in addition to calling the person a retard. Could also be interpreted as a threat.
What do you mean you did my girlfriend?! That's it, look at the rabbits, bitch...
by Kulor May 24, 2005