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A mistake or a failure. The word can usually morph into the meaning of your choice with negative connotations. Yonk does not describe people but is a description.
Bro, I just yonked my APUSH test.

I tried to talk to that guy over there.
Yeah I saw, that was a yonk.

Tommorow is going to be such a yonk!
by broski62726618 November 30, 2018
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3
An extrememly long time. (noun)
Dude, I haven't spoken to you in yonks!
by HLNT October 19, 2004
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4
British Slang, Measurement of Time;

1) The unit of 'Yonk' is known to be exactly 3 Months and 13 Days.

--> Used to describe a long period since you last saw someone or something. Usually termed 'Yonks' rather than a 'Yonk'.
1)
BOB: "Gee Willy, I haven't seen you for Yonks!"
WILLY: "Yeah, must be about 3 Yonks actually."
by Stuart Fletcher November 10, 2004
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5
a very long time, usually a number of years
"I've been mad for fucking years, absolutely years, been over the edge for yonks, been working me buns off for bands..."
-Pink Floyd, Dark Side of the Moon (Speak to Me)
by Chris August 25, 2005
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6
v. To thump one squarely in the nose
n. A square thump to the nose

The metric of a powerful yonk lies not in the force behind the blow, but in how yonked the recipient feels.
To feel yonked is to feel put in one's place.
Christ delivered the squarest and mightiest yonk when He put sin squarely in its place.

Richard, in the name of the weed that killed Tupac I will yonk you for this!
by Ganderschplaf the Gray December 02, 2018
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