Shortened version of post-drinks. The act of going back to a friend's house for drinks after a night out, as opposed to 'pre-drinks' or 'prinks'.
Despite already being totally wankered, they decided to head back to Matt's for ponks.

The party turned out to be be disappointing, so the lads decided to leave early and ponked at Jonny's instead.
by fromtheJtotheB March 4, 2012
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Better known as a "PoesZonk". A zonk is when you put your hands together and shove them into the anus of a person that is looking the other way as a joke. A Ponk is when you do it with a girl on the vagina from behind when she is not looking. Everyone always laughs and laughs. Gloves are recommended when she is wearing a skirt.
Look how Cindy is leaning forward at Gretel's desk, I am quickly going to "ponk" her before she turns around.
by Vuilbek April 8, 2019
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the lesser-known collective word for gonads, like a 'pride of lions'
you act like you have a ponk of gonads
by squeakpwo January 27, 2009
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ponking is the act of wanking whilst having a shit, in short, mastashitting
v. ponk
n. ponker
am going to the toilet for a ponk, be back in 20 mins
Matt N. loves ponking
by mattynic October 8, 2005
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Ponk is a munecraft youtuber most famous with his work on the dream smp he is missing one arm canonically and in reall life is a very little man but we all accept him even on tommy's land.
Ponk does literally anything

Tubbo " Ponk go Bonk "
And he do be going bonk
by Outcasted6059 April 16, 2021
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Ponk = Punk

But it is pronounced in a Latina accent
Girl: "stop being such a Ponk"
Boy: "I'm not being a "Ponk" I'm being a *punk"
by Lord Juan April 3, 2016
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To engage in the act of masturbation whilst defecating.
This is a big poo, I might be here a while. I think I'll have a wee little wank to pass the time. I love a good Ponk.
by Wanna Ponk? November 11, 2010
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