look up any word, like bukkake:
 
1.
verb. When a plan backfires on you, because you're a stupid boxhead who doesn't know any better.
Origins: Like backfire, only change "back" to "Jack" because everything Jack does backfires on him.
God's plan to make a superhuman race with boxes for heads really jackfired on him.
by Angry Dan May 14, 2004