Good quality food either bought or eaten in an expensive restaurant.
"It's our wedding anniversary so we're going out for some posh nosh at ....".
by Segilla November 11, 2006
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Nosh being a blow-job, posh nosh is when a girl gives a blow-job but only if the bloke is wearing a condom so that she doesn't get any juice in her mouth/face.
Kyle: Ahh stacies dry, she only gives posh nosh
by Kyleffjfjfjjfjf January 18, 2008
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