1. V. To mentally castrate for the purpose of enjoyment.

2. V. To destroy the mind and soul with unnecessary application of useless utilities. (i.e. calculus)
My calculus teacher decided to Sefton all of us with a mind blowing problem that even he could not solve.
by Seftonman December 1, 2009
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1.a natural born playa
2.a pervert
3.a place in australia
damn hes so sefton!
that sefton bastard grabbed my boob!
by OLD John for the block April 2, 2008
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Sefton- a slang to be used in the same way "hate" or "idiot" is used
example 1-

Boy: Fuck you go die
Girl: Stop Sefton
by Karen is Smith September 3, 2021
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Sefton’s Law states that the likelihood of mainstream adoption of new innovations is inversely proportionate to the extent to which using said innovation makes the user look like a dick.

Coined by Adam Sefton, Executive Creative Director at Reading Room
Google Glass is Sefton's Law in action. That wearers are already being called "glassholes" shows you that it'll never go mainstream.
by SomeRoomie March 27, 2014
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state of being Sefton or pretend to be sefton
he is seftoning in these days
by December 3, 2022
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