Top Definition
when one's feek becomes instantly liquid after consuming an overly spicy food product.

also known as hershey squirts.
Aww Man, I went to CiCi's and had some pizza and now I got the instashits.
by Matt April 10, 2004
When some serious shit goes down instantly
I was having sex with my girlfriend, and her mom walked in causing instashit
by Gootintag April 02, 2010

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