A negative exclamation. Can replace "nuts!" or "fuck!".
Also, an exclamation used when one is injured in the groin area.
John: Did you remember to send in the forms like I told you a dozen times?
Steve: Nutcrackers! I didn't!
John: Man, that guy got hit in the balls pretty bad by that football.
Steve: Nutcrackers! That's gotta hurt!
too tight pants worn by men
He was wearing nutcrackers to the club.