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1.
referring to Amy Winehouse, it defines someone who whines about things when they are supremely talented and/or lucky.

For example, anyone with a drug problem is lucky to afford rehab, but Amy Winehouse just rejects it.
Amy: Wah! I can afford to go to rehab but I don't want to lose my street cred!

Agent: Quit being a whinehouse about it.
by VegasLaLa October 06, 2007
 
2.
Describing someone as being a crack head.
OR being really super crazy.

Taken from Amy Whinehouse life as a crack smoker and doing weird things.
ME: "So I was walking home from work and some whinehouse was running naked through the street!!!"
by musicocd November 30, 2009