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.
Using Sum
Sum is used to refer to an unspecified number or amount.
Example
Let’s meet up and spend sum quality time together.
Alternative Sum Meanings
Summary.
An amount of money.
A total found by the addition of two or more numbers.
What Does Sum Mean?
Some.