Sport or recreation
by Isabellathefirst January 13, 2009
by EmptyPots March 24, 2015
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
by Chemshotlord August 31, 2015
by averyone's mr tang April 13, 2021
by Sum's Lover November 12, 2003
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.
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