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To give someone head.
Nosh Off: to be used in the context " She noshed him off Friday night!"
by J-Я-z June 15, 2009
To either

a) Eat, or feast upon


b) Suck off somebody
a) Look at you there, noshing off those 'nanas
b) He was in a bush, receiving a nosh off
by Jim hender June 11, 2008