A term meaning you and someone else are thinking 2 people are having sexual intercourse without your knowledge, but you can tell.
*Teacher sat at desk and is marking work*
*Another teacher enters and starts talking to the other teacher*
*Pupils turn round to friend*
"Them teachers are DEFFO SHAGGIN' look at them"
by skankers2k9 July 28, 2009
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It means Definitely. Deffo is short hand for Definitely, just add a Jeffo for coolness!
Q 'You want to go to the movies?'
A 'Deffo Jeffo!'
by rachcook182 March 18, 2007
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an longer version of definitely, usually to a person to person with a name like jefferson or geoff.
person 1.we should defo go to the the rave
person 2.yeah deffo jeffo
by work colleague April 1, 2011
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Deffo is a short form for defenetly.
"She deffo likes you."
by EhreEntwendet January 7, 2019
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Another way of saying definetly; cooler
Friend 1: You saw the new assignment that the Spanish teacher posted?
Friend 2: Yeah, that shit is deffo gay
by idrcuckiontop February 27, 2023
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