Top Definition
Verb: the action of throwing out all your boyfriend or girlfriend's shit when you break up.
"Yeah, We have to break up in person I don't want any Gaffneying."

"I have to but a new tv, my girlfriend went Gaffneying after we broke up and tossed my stuf fin the dumpster the morning of garbage day"
by GossipyBitch October 24, 2011
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