(Noun): Someone who is actually ridiculous enough that one would believe his stories.
Bro: "Naw man, stop hassing me"
(Noun): "I thought you hassed me about Big Crit, but then i remembered that time you jumped up on stage with Big Sean, your such a Hass."
This word comes from Hassle, which was shortened from Hasslehoff, who I'm sure everyone knows. It just kind of evolved. It is better to just go with it.
Dfish- "that girls ass was sooo ubbberrr kink"
DC- "Conti help me clean my room so my mom gives me her credit card"
Conti- "Hass the fuck not"
okj- "Thomas lets go offroading"