Mad fire 

Perth slang for crazy.

Person 1: have you heard about J Cole's new album
Person 2: No boy, why?
Person 1: IT'S MAD FIRE!

Mad fire by bounapootoot January 27, 2017

mad-fire 

In love with someone more than they love you. It makes you crazy.

'She ripped my heart into two, maybe three pieces like it was nothing. I'm mad-fire over her.'

mad-fire by hollywood_88 November 4, 2007