Someone that eats the nasty cheese like build up under a person's foreskin after not washing it for too long.

Smeg is the nasty stuff under one's foreskin after not washing it for too long. This word is thusly often used in insults.
Don the mop is such a fucking smeghead.
by Smegum May 28, 2009

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Top Definition
From the comedy sci-fi show Red Dwarf smeg-head is an insult which can mean 'idiot' or basically 'bastard.'
"You complete smeg head Lister."
"He's such a smeg head he'd stick his finger in a plug socket."
by Radclyffe November 08, 2003

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The origin of this word is unclear - while it is accused of being an abbreviation of "smegma," Grant Naylor insist that they saw the word on a foreign appliance, and co-opted it as an all-purpose cussword for their show "Red Dwarf."
"Oh, Rimmer, you *are* a smeghead."
by Kucitizen June 04, 2004

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A all purpose cuss word, made famous by 'Red Dwarf' a popular TV show. Thought to have first been seen on a foreign appliance before being used in 'Red Dwarf'.
U Smeghead

Ur a smeghead
by DJDale September 13, 2005

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similair to calling someone an asshole or totall gitt.
Comes from the root word "Smeg" as in cheese dick.
Rimmer, you are a totall smeg head!


by Kevin February 17, 2003

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Plural for Smeghead

Derived from Smeg

See also Boy Racers
What a bunch of Smegheads
by Snake August 16, 2004

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Someone whos head (the one with the brain) is full of smeg.

Smeg is the nasty stuff under one's foreskin after not washing it for too long. This word is thusly often used in insults.
- Hush your noise smeghead!
- That guy's a right smeghead...
by Meatyman April 24, 2007

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