Someone who makes a harsh joke directed at another person, but then is quick to apologize and beg for forgiveness - losing his friends respect for his joke(s) in the process. The ultimate sign of someone with no balls.
Joe: Damn Kevin, I can't tell if that's your mom or a hippo.
Kevin: Wow Joe, you're an ass.
Joe: Shit man I'm sorry, I was just kidding... Let me buy you a new car.

Friends: *shake heads* Look, his apology reflex is acting up again.
by Mocha Suthers March 22, 2014
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