As seen on Keith Lemon's infamous 'Celebrity Juice' it's another word for Cunninglus. The way your mouth moves while performing this act produces a 'mott mott mott' action.
Phil: Hey Dave, did you get lucky with that skank you pulled last night?

Dave: Nah man, I was too pissed to do that business so I just motted out instead.

Phil: Nice, did you repeat yourself with 'MOTT MOTT MOTT' like Keith Lemon?

Dave: Yeah, she got freaked out and went home for some reason?

Phil: PAR
by stannyy September 2, 2011
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Mot out is Keith Lemon's term for eating out!!! in other words to go down on a girl, to lick her out, perform oral sex etc,etc,etc.
i sooo want to Mot her out!!!!
Oh i do love a bit of Mot Mot
i really want to Mot out a the queen
by mojoclojo October 12, 2011
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Performing oral sex on a female, Mott being a northern term for a vagina
I was motting out this bird when her boyfriend walked in. Lol
by BigsexyBFG November 12, 2013
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