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An assfacet is an asshole who, per legend, has a small invisible knob on their neck that is almost constantly turning. This releases a flow of assholishness that influences all others in the vicinity. Occasionally the knob stops turning and they become normal, but on an average day it is turning.
"Have you seen Molly's new boyfriend, Jake?"

"Yea, he's a total assfacet, though."
by Mark ;) November 06, 2006
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