a funny
When you're so angry you laugh like you're in a comedy show, while shaking your head like you're about to punch someone.
My friend called me a 'retard' and I just laughed like I was at a stand-up show.
My sister said I was the worst sibling ever, and I just shook my head and laughed like I was in a fight club.
My mom yelled at me for 10 minutes and I just laughed like I was watching a funny movie.