Gilk is the shorthand word for "gross milk".

Gross milk is synthetically created by letting a gallon of milk sit in the fridge for 2 months until it has fully curdled and smells gross. This process can be sped up by letting it sit outside in direct sunlight on a warm day.
My friend hid a gallon of open gilk in my bedroom and now I don't sleep there anymore.
by DaRealLooch January 21, 2021
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That is one GILK I wish was dead!
by genexit May 15, 2010
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a way to say: i went to the story to go get some milk
hey carly, store gilk!!!
by The shiznit!!! December 16, 2004
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OJ and milk mixed and it dont make you feel so good
I made gilk today, it made me quite sick
by among us enjoyer August 19, 2022
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Ginger beer in milk.

A delicious concoction of ginger beer and milk. Ice in first, fill the glass halfway with milk, then pour in the ginger beer.
Dad, can you please make me a glass of GILK?
by LozZar December 20, 2022
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