'really' or 'very'
'thats sum cool!' or 'hes sum hot!'
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When one Sings and Humms at the same time! It is quite a pleasant sound a bit like a young walrus' mating call!
I was walking down the street Summing to myself
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The ratio of seats to bums on public transport, particularly relevant to rail travel.
Southeastern never seem to get their sums right!
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Acronym for "Super Ultra Mega Slap"
Used when insulting or scolding someone for what one thinks is tasteless, immoral, or just fucking retarded.
May also be followed by an actual slap.
Coined in 2004, by a kid with an itchy fro and another kid who was just trying to fit in.
Me - Hey Colton, I just went out and bought the new Nightmare Creatures game!
Colton - *SUMS*
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an instagram account made by a boy where he posts pictures of himself pretending to be a woman
look at him, he's posting for sum sum ig again!
A guy with a huge mule who likes to talk dirty to women.
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A game where when someone says something stupid and you get to hit them on the head for it. After someone says the stupid statement, you immediately say "That's sum." while rubbing your fingers in the air like the sign for paying money.
Mick, "I drank 7 out of the last 5 days"
Al & Calvin, "That's sum, asshole (rubbing fingers in the air)."
then Al & Calvin each get to slap mick on the top of the head.
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