Kalbag
Somebody who is a complete retard and doesn't know anything about what they're talking about.
Laura: I am so cool and smart, everybody loves me!
Dave: Shut the hell up you Kalbag!!
Dave: Shut the hell up you Kalbag!!
Kalbag
Someone who has surpassed the levels of jerk and asshole, close to have reached fucker or motherfucker. Not to be confused with douche.
Rob:He kept hitting on my girlfriend at the party, he just wouldnt leave her alone!!
Sam: God, what a kalbag.
Sam: God, what a kalbag.