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(noun) The practice of secretly showing one or both testicles while standing in the background of a photo. Can be either the through-zipper or above-trousers type.

Made famous by Nathan in the Chris Lilley comedy Angry Boys.
Nath's got this new thing he does, it's called sneaky nuts. Fucking classic. Stands in the back of a photo, rips out one ball, sometimes two. Sometimes through the zipper, other times above the trousers. He tends to mix it up a bit so you never know what you're gonna get. Fucking brilliant Nathan is.
by doc brown April 03, 2011
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2
A game that only guys can play in work/public place.

To play is to expose a testicle to a female.
To win you must do it without her noticing.
by Generic_Essex_Guy_1985 August 03, 2011
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3
The act of pulling one testicle above your shorts and putting it back once noticed.
When was your last sneaky nut.
by ClemDawg227 October 02, 2016
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