Bad tempered attitude whilst playing racket sports, bringing to mind the rantings and/or racket abuse of John McEnroe.
Mike: (Playing a bad shot) GOD DAMN IT!!
Pete: Man, you got some real bad Macitude today.
Mike: (slamming racket against wall) Whatever dude...
When everyone in a room or given space is on a Macintosh computer.
Dude, can we observe this macitude right now?