An abbreviation that is widely used in texting and chat, and on Facebook and elsewhere on the internet, but what does Sum mean in slang?
Most Common Sum Meaning
Sum is an abbreviation for Some.
Sum is used to refer to an unspecified number or amount.
Let’s meet up and spend sum quality time together.
Other Sum Meanings
An amount of money.
A total found by the addition of two or more numbers.
What Does Sum Mean?