Top definition
1) noun
An Asshole (literal or figurative).

2) verb
To be an asshole; To fuck over (lit. or fig.)
My school is rosenbauming me with this tuition hike.

Mahmoud Amadinejad is such a rosenbaum.

He rosenbaumed you by not telling you about the sale.
by Gragster September 10, 2009
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