Top Definition
The verb form of WUM (Wind-Up Merchant), a predominantly online phenomena of espousing contrary viewpoints purely to string people along and get a reaction from others. A mild-mannered form of trolling.
I know you're just having a laugh, but cut out the wumming, NewFag, or I will ban your ass faster than the angry fist of god.
by B9a May 19, 2011

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