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 22, 2006
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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 Sum's Lover April 22, 2004
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Shortened for Summer.
Person: Hey, Sum!!
Summer: Hi bestie!
by Asshole tree February 29, 2020
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Where everyone is equal in a particular meeting or situation despite having different levels of seniority present.
The CEO announced that the meeting should be treated as a Round Sum meeting and everyone is treated as equal in seniority.
by Crash888 August 3, 2011
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Used in a term where as people would say “sum light” as light work, too easy, or I ain’t doin nothin different this easy
*shoots basketball into the hoop and makes it*
That was Sum light ya know🤷 ♀️
by tooreal ! May 8, 2018
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Brad: aye bruh did you see that bit from the party the other day that hoe had to be off sum.
by Quann478 May 30, 2021
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