Top Definition
1.A compound word meaning to instigate and hate simultaneously.

2. To instantly hate on anything or anyone.
1. Stop instahaydin on me please!
2. The homie Tony was trying to talk to this honey when Gummy decided to instahayde on his game and perform "the robbery" on him.
by WOODA99 October 13, 2010

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The Urban Dictionary Mug

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