A neighbor, friend, or other acquaintance with whom you agree that slight accidental automobile collisions are acceptable.
"Dude, you just hit his bumper!" "No worries, that's my neighbor Larry's truck. We are bumpbuddies."

Well, you rear ended me. But if you'll be my bumpbuddy, we can forget this ever happened.
by ParchÞeSkald May 23, 2014
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