Top Definition
The semi-solid ball of semen that one rolls out of their belly button after months of jerking off on their stomachs and letting it dry there.
"I need to get out more, I just picked out a tug nugget the size of a marble"

"I hate John, he is such a worthless tug nugget"
by your_seal_name July 09, 2014
5 Words related to tug nugget

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