1old-fashioned slang : coffeesense 1"Thank you, Marco," the Chief said when they had reached his door. "Will you come up for a cup of jamoke?"— John Foster
2slang : an ordinary, unimpressive, or inept person
—typically used as a term of mild or joking disparagement for a manIf my brother and I proved one thing, it's that just about any jamoke can host a radio show.— Ray MagliozziYour boss obviously thinks you're suckers, fools, chumps and jamokes. Take your pick.— John KassWhy hasn't anyone thought of inventing a laptop case that converts into a portable office so that when a jamoke like me is stuck in a joint like this, he can use the case as a portable work desk?— Jeffrey L. Seglin
First Known Use of jamoke
1895, in the meaning defined at sense 1
History and Etymology for jamoke
by shortening of jamocha "coffee," blend of java and mocha
Note:
Origin of the second sense is unclear. The initial syllable and second vowel suggest slang jiboney, jaboney "guy, fellow."