Headnog or head nog, is the by product of a holiday blowjob. Usually associated with winter celebrations such as Thanksgiving, Christmas and the New Year.
How about some head nog after that great Thanksgiving dinner.

Christmas morning, I woke Jack up for some head nog.
by funnyfrenchman December 12, 2011
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an insult used to show your displeasure towards someone who is struggling to get up something or get something up
by Cragles June 15, 2016
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