Top Definition
Slang for "something"; "some of"; "some of them";
a) You got s'um for me?

b) Can I have s'um dat please?

c) You can give s'um a break.
by itake4everrr January 11, 2006
a big and huggable teddybear
"and then, this guy sum, started crying like a big teddybear"
by Matt Smith August 04, 2004
Sums is an acronym for Spontaneous Uncontrollable Masturbation Syndrome. Sums is caused by puberty, boredom, lack of action, high sex drive, hot people, ect. It is characterized by spontaneous and uncontrollable masturbation, often at inappropriate times such as at the park, when voting, or in line at the bank.
-"OMG look, he's doing it right there!"
--"He can't help it, he has sums"
-"he's my hero..."
by Mark Manivol February 24, 2008
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 sum loser March 18, 2005
"SUM" is a shortened direct command with a meaning similar to "be quiet"', but which is commonly perceived as an angrier and more forceful demand to stop making noise or otherwise communicating. The phrase is probably a shortened form of "shut your mouth up", and its use is generally considered impolite.
Laura: I'll really hate rain, it scares the hell out of me. I mean were does it come from, can you drink it?

Dude: SUM bitch!
by Glasstt August 30, 2011
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 a. ryan May 21, 2006
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