Top Definition
When a girl has an estrogen explosion in a stunned shock of voicelessness and scattered shrieking and squealing.
Guy: Dude! Why did you send that picture of cute cuddly kittens to my girlfriend!

Dude: What? I thought she would like them!

Guy: She did! Thats the problem, she's totally chelsing out right now!
by Andrew Teeples August 11, 2007
5 Words related to Chelsing Out

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