A very loud and obnoxious fart. The kind that rattles the house to the floor!
He let off a keff and my house nearly fell to a pile of rubble!
by oOoSCOTToOo August 15, 2018
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A person who smells extremely unpleasant, similar smell to a fresh pile of dog shit.
Woah Haydan stay away from me you absolutely Keff
by SamB14 May 23, 2020
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He produced a fart, so quiet as to be almost a keff. Why, Dr Grierson! whispered Mrs Timmins, as she put her 'kerchief to her nose......
From 'Dr Grierson Makes a House Call' by Antonia Fraser.
by Philmadison July 4, 2006
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A finnish word used to descride someone autistic
Vittuoot keffe mee töihin.
by mauri666 November 25, 2019
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Wigan-ese for when your naked nipple rubs on your shirt all day long until tenderness turns into throbbingess and a kind of paper cut like irritation is achieved (like someone's just ran a sheet of A4 across your nip really quickly and you're not sure if its bleeding or not and it's inconvenient to stop and take a look coz youre at Alton Towers or something).. We also believe it affects women although they will never openly admit to it like men do.
Johnny sez to his mate Paddy "christ man, I've got a reet Keff Nip I have". His mate understandingly nods.

by Johnny 5 is Alive May 8, 2008
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baby keff is the hottest rapper out , Instagram : @baby.keff
Look at baby keff!
by Baby keff October 7, 2020
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