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Condom. A flexible, rubber or latex liner of one's beef (genitalia).

Origins: 2008 Climbing trip to Red River Gorge, Kentucky, atop Party Time (5.7, 2 pitches).
His baby mama got pregnant again because he didn't use a beefliner.
by beefliner July 10, 2008

Words related to beefliner

condom contraception intercourse pregnancy sex