Involuntary single income no kids. A derogatory term usually used to describe a female who, for one reason or another, cannot get married or have children. The female equivalent to incel.
"Those woman will be inSINKs if they sleep around."
"Girl, you're giving off some real inSINK energy."
by Liquidmesh September 8, 2023
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the corrent way of writing in sync and those who use it are major bad asses
damn that shit is soo insink
by Young Somalia October 31, 2019
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