When someone is so sleepy their head starts to nod in a downward motion, as if they are giving someone a blow job.
Haha! Look at Jim over there. He didn't get any sleep last night so now he is bobbing for cock.
by tatermctater April 16, 2015
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The act of bobbing your head up and down (almost sleeping) during a boring safety brief that is being given by a pussy officer. This usually occurs right before you get libbo.
pete: Check out that guy.
tom: Which on?
pete: the guy bobbing for cock...must of had too many drinks last night.
by legitimate-jon September 20, 2013
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