Green’s Dictionary of Slang

1. rendered insane or unstable by.

1933		‘Paul Cain’ Fast One (1936) 199: he shook his head sadly, without looking up. ‘Slug-nutty’.
1942		N. Algren Never Come Morning (1988) 2: You got ever’thin’, Casey [...] if just you wasn’t knock-nutty!

2. obsessed with.

1963		B. Hecht Gaily, Gaily 92: Our dude, Teddy [...] hopped, skipped, and swiveled on the dance floor with no more sign of quitting than if he were a goldfish circling in a bowl. Swan seemed equally dance nutty.
1970		P.R. Runkel Law Unto Themselves 27: What a dilly he is – the Captain we got is haircut nutty.