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A clique of cocaine addicts. Usually seen in bars and house parties. Identifying characteristics include echoed sniffles, excessive chattering, nasally voices, congregations by the bathroom, and a seemingly decreased affect of alcohol consumption.
Guy: I better go piss now.

Woman: Why? Are we leaving?

Guy: No, the yak pack just walked in, this may be my last chance to go.
by K Dolo October 05, 2010
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