Chumbucker
A friend that is cool one on one but will generally embarrass you in a any group setting you fond yourselves in.
Oh, I am so glad that you ditched that chumbucker in the bad part of town.
Chumbuck
Fool, Idiot. Said with some fondness.
What a chumbuck.
Goddamn chumbuck just nailed himself to the table again
Goddamn chumbuck just nailed himself to the table again