1. In politics, the use of "dirty tricks" to discredit one's opponent(s). This often takes the form of false or semi-false accusations spread through underhanded means. The term was coined in the 1960s by Hunter S. Thompson and Bob Woodward. The art of ratfucking was brought into the public eye by Karl Rove. Among his ratfucking accomplishments are the 2000 GOP South Carolina primary and the Swift Boat Veterans for Truth.
Guy 1: My Camaro is getting a little over 500 horsepower now
Guy 2: Yeah, well my Mini Cooper can fly to space!
Guy 1: Dude, stop fucking rabucking me...