wabbit
/wab'it/ [almost certainly from Elmer Fudd's immortal
line "You wascawwy wabbit!"] n. 1. A legendary early hack
reported on a System/360 at RPI and elsewhere around 1978; this may
have descended (if only by inspiration) from hack called RABBITS
reported from 1969 on a Burroughs 55000 at the University of
Washington Computer Center. The program would make two copies of
itself every time it was run, eventually crashing the system.
2. By extension, any hack that includes infinite self-replication
but is not a virus or worm. See fork bomb and
rabbit job, see also cookie monster.