Top Definition
Something - or someone - that is surprisingly disgusting despite its small size. Presumed to be a combination of the words "gross" and "dinky."
"I thought she liked macho men - but no, she's going out with that grinky little Frenchman"

"He flung aside his undershorts on which one could clearly see a thick, brown, grinky smudge."
by bagloon November 26, 2007

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