BABABAAA - Abhi's special word that comes out of nowhere. It's like he'

Abhi's special word that comes out of nowhere. It's like he's trying to be a tough guy but just sounds dumb.

Abhi: BABABAAA!! I'm the toughest kid on the bus.

Me: You're not even wearing pants.

Abhi: That's why I'm tough!! BABABAAA!!

Me: You're not tough. You're just loud.