Derived from the name "Emma Wilkinson" and meaning a person who is incredibly jealous and/or disgusting.
Person: Eww, Jack is such a wilko!

OR

Person: Don't be so wilko.
by chris March 24, 2005
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'Do you fancy going to Wilko's??'

Steve: 'Where did you get that from?'
John: 'I got it from Wilko's mate!'
by Weezley November 26, 2008
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to fuck something up totally , make a big fuck up, a shit stain on the pants of the world
iv just made a massive wilkos......
by red boy77 May 8, 2011
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To be absolutly stupid, to be worse than a blonde.
Also you think you said something, when...you didnt.
Oh my gosh, what a Wilko!

(Btw, the author just pulled a major Wilko. Dont ask..)
by Bubzie June 9, 2005
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A fat teenager that makes up a lot of nonsense. Usually lives in a council house and loves traction engines. A wilko's breath normally smells like rotten garbage.
'That fat kid that loves traction engines is such a wilko'
'Hey, that kid's breath stinks and he lives on Queen Street, he must be a wilko!'
by JimmyJimJimJim November 25, 2005
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any bald guy that acts tough and cool around others.
"Did you see that bartender that cut off serving me tequila shots, he got all Steve Wilkos on me when I wouldn't leave."
by KillerMongaloid November 1, 2009
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Someone who has noodle hair is incredibly short and annoying and has an extra chromosome
That new guy is such a Brandon wilko look at him
by Mr fang April 21, 2021
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