Someone who enjoys touching little boys and girls.
I don't want candy, you nonce
by Cvleb March 22, 2019
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Someone who picks up under 16s at bars.
Dan picked up a 15 year old last night, what a nonce.
by Bjf713 October 27, 2017
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A term usually used by kids in the UK to describe someone as an idiot or a silly person
Kid 1: What the hell man!
Kid 2: I'm sorry! I don't know what I was thinking.
Kid 1: That's the point, you didn't think! you stupid nonce.
Kid 2: ...a what?
Kid 1: You know, as in an idiot, duh!
Kid 2: ...
by Pseudo-what? October 10, 2018
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A nonce is a random or semi-random number that is generated for a specific use. It is related to cryptographic communication and information technology (IT).
The term stands for "number used once" or "number once" and is commonly referred to as a cryptographic nonce.
by Crypto Man July 3, 2022
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Pejorative term for a sexually deviant male. Current usage has shaded into implying a pedophile but the older meaning was a homosexual or effeminate male. The transition in meaning has occurred as homosexuality has become more acceptable but pedophilia has become less so.

Etymology: Nance, from Nancy. The female name applied derisively to a male expressed the speakers opinion of his taking or deserving a female or inferior role. Also Nancy-boy, Miss Nancy, Miss Molly, Nauncy, Naunce, Nanny-boy.

Variants of this term date back to at least the mid-nineteenth century and probably much earlier.
The charge was elevenpence, but it was a dark, evil-smelling place, and a notorious haunt of the 'nancy-boys.' Downstairs, in the murky kitchen, three ambiguous-looking youths in smartish blue suits were sitting on a bench apart, ignored by the other lodgers." George Orwell, "Down and Out in Paris

"...My first presumption was that he wished to ask me my direction but as soon as he spoke I knew him to be a nonce..." John Stewart Earl, Journal
by Ruthless2 February 19, 2011
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How do I say “let’s go champ” in your language

“I am a nonce
by Nonce Briggs November 23, 2019
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Someone who likes to touch, or at least try and touch kids.
Person 1 - "Hey did you hear about Elf!?"
Person 2 - "No, why?"
Person 1 - "He tried it on with that 14 year old and he's like 18/19!"
Person 2 - "Oh my god! What a fucking nonce!"
by GetToTheChoppa September 8, 2013
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