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1.
A general pejorative used primarily in online communities, particularly gaming communities.

Etymology: Originally used in Chris Coutt's Tales for the L33T, an adaptation of Shakespeare's classic Romeo and Juliet for a generation more familiar with internet vernacular than Renaissance-era English. The phrase originated from a dialogue between Gregory and Sampson, the former referring to the latter as "Sampfag," a portmanteau of "Sampson" and "fag."
stfu sampfag
by OrwellJames March 03, 2010