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When a white American woman has the fetish and/or attraction for trashy British men.

Referring to Katy Perry's relationship with Russel Brand. And the British slang word for toilet spelled "Loo" or "Lou".
Guy 1-"Hey i heard she's only into British guys"

Guy 2-"Oh she must be a perryloo!"
by konolikapika October 18, 2010
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