Define Sum Meaning

a lazy persons way of writing the word 'some' also one of those idiot who likes making things shorter by taking of the last letter of last few letters
some = sum
dumb = dum

some = sum
dumb = dum

person1:'whos that?'
person2:'oh, its just sum dum idiot'
By Ebony

"and then, this guy sum, started crying like a big teddybear"
By Eleni
"Some", but retarded. Also the result of addition.

i had sum kake and i smurt
The sum of 2 and 2 is 4
By Regan
'really' or 'very'

'thats sum cool!' or 'hes sum hot!'
By Kitty
A guy with a huge mule who likes to talk dirty to women.

Look at Sum, he's a stud.
By Marjy
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.
By Roze
A homo who eats lots of veggie burgers (AKA homoburgers) and likes to play with himself.

He also may wear too much cologne and and have a very deep voice.

By Marget
A little something.

Sometimes a little something extra.

Used many different ways to imply a variety of things including drugs, sex or sexual acts, money, etc.

Can be used to describe almost anything you want a little something of.

I called my dealer up for a lil sum-sum to take to the party.

She was so wasted that she drunk dialed her ex last night for a lil sum-sum.

I told him to throw a little extra sum-sum into the sack I bought since I am such a faithful customer.
By Verla
Sum Sum
having getting sum from somebody

dude: wat did you do last night with that girl
dude1: dude i got sum sum last night
By Edy
The Sums
A joke name for the popular canadian pop-punk band Sum 41. Originated in the video to 'Still Waiting', where the executive (presumably) of their record label felt that 'Sum 41' was out and 'The Sums' was a better name for the quartet.

- The reason I called you guys in is that the number band thing is, out, ok?. What's in now is 'the'. The Vines, The Hives, The white stripes, this isn't new. Listen; 'The Sums'? Right?
By Vanni