Wag3 is a word that can have many definitions:
- Wage: replacing e with 3 because it's the closest one to it.
- Swag: maybe forgot the S or replaced with 3 because of swag you know
- Wag3: something faggy which was said to add something to the chat ay.
In other words, or just summarizing it,
It's some word said by supermailb just cause he wanted to type it in.
That's it.
oh look at me I can make fancy texts now :o