It means your lifefing sucks and thats really really sad i just dont want to say it to your face. so iam being polite and saying it just sucks to be you!
when something sucks so bad that if the situation were a person it would be willing to suck chuck norris' dick despite the obvious risks to both health and safety.
Dude 1: this game really sucks chuck.
Can also be used to describe a lame bar, ugly people, bad tests, and parents. This list is not exhaustive.
Not to be confused with the act of hurling chunks.