What is Grunbaum?
1.
From the verb "To Grunbaum", meaning to steal credit for someone else's work whilst making them look bad, esp. towards senior managers.
"James did all the work on that, and Paul completely Grunbaum'd him"
"You bastard, you've Grunbaum'd me!"
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Giving off a silent fart, grabbing it with your hand and then bringing your hand up in a ninja fashion and throwing your fingers open, u..