A filthy bastard that doesn't wash and wears dirty clothes (can be shortened to Fez).
"what the fuck is that smell, is that you, you dirty fezzer"

"Err haven't you showered today you Fezzing basterd"
by DaveTT May 7, 2012
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Farting in your car & it smells so bad it’s still there when you get back in 20 mins later.
Pop into the pub for a quick 🍺

Friend getting a lift home: “Ferk! Your car stinks”

Steve: “Sorry mate, I must have done a fezzer was hoping it had cleared”
by Smart Town July 13, 2021
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A stupid bald idjit! who talks as if he just swallowed manjuice!or has just been taken up the anus!
Isnt that teacher a Fezzer!
by s.h.long December 17, 2003
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