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1.
the opposite of paying it forward. generally a chain reaction of dickhead behavior caused by one gigantic asshole.
person A: yo man some guy stole my t.v. last night
person B: ahh that sucks dude i hate assholes

4 hours later

Person B: yo man why did you drink all my liquor then curb stomp my dog
Person A: whatever man just pay it backward.
by dr kush 11 July 17, 2010