Another word for the gooch, or the area between the bottom of the ballsack and the anus.
Hey, Tom, come here and lick my nipkin.
by TheJew72 October 09, 2004
Top Definition
The cloth, napkin, tissue, towel or rag used by a lactating female to dab and wipe up the last drip or droplet of breast milk from the nipples.
Sara was lactating from her recent pregnancy and always used a Nipkin to clean the last drop off breast milk from her swollen and engorged nipples.
by Auna Bender June 12, 2015
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