Adjective
mad for it (comparative more mad for it, superlative most mad for it)
(UK, informal) Exceedingly eager, or having a keen desire or appetite for something. Particularly associated with and originally from the Madchester Era.
I'm into the girls fancying me and stuff, mad for it. Liam Gallagher
I'd rather have ten people who are mad for it than ten thousand who aren't. Peter Hook