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1.
One who is afraid of doing what it takes to get the job done. In relation to giving a male oral sex and running to the sink instead of swallowing.
My friend is such a sink-runner, he wouldn't come downtown and pick me up when my car broke down.
by dr.js August 24, 2006

Words related to sink-runner

oral runner sink spit swallow
 
2.
One who, after performing fellatio, runs to the sink to spit.
Dude I thought the chick was cool when she starting slobbin my knob but it turned out she was a dirty rotten sinkrunner.
by poonatic June 01, 2006