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1.
The "posh" supermarket of the UK. Everything they sell is either "mouthwatering" or "luxury".
Ducky, I'm popping down to Waitrose to pur-chase some luxury golden Christmas pudding with mouthwatering brandy syrup.
by errata June 13, 2007
 
2.
a cool supermarket in the UK. not to be confused with sainsburys, asda, morrisons or tesco.
I like the deli at waitrose and the checkout girls are much better than tesco value
by henapen August 04, 2006
 
3.
A pretty girl who works on the checkout of your local supermarket, and who you think is too beautiful to work there. A play on the name of a well know chain of upscale supermarkets and the flower known for its beauty.
"That girls such a Waitrose i only shop here to see her"
by mrforde August 23, 2006