Green’s Dictionary of Slang

crazy adv.

extremely, very much.

Plain facts addressed to the inhabitants of Boston 96: Foreigners [...] get crazy drunk and disturb the public peace.
[US]‘Ned Buntline’ Mysteries of N.Y. 38: He found him [...] surrounded by a set of fellows who seemed crazy drunk.
[US]S. Robinson Hot Corn 211: How, what, and where do I find her? As you see, crazy drunk, in this miserable' hole, in Cow Bay.
Graham’s Illus. Mag 53 179/2: Of course if he [i.e. an elephant] were crazy drunk he would go knocking about, tearing up lamp-posts and tearing down signs, and elevating the ancient Henry generally.
[US]L.A. Herald 6 Feb. 8/1: It required two officers to arrest him, as he was crazy drunk.
[US]S. Crane in N.Y. Press 9 Dec. in Stallman (1966) 114: He don’t know what he’s doing. He’s crazy mad.
[Aus]E. Dyson Fact’ry ’Ands 9: I’m just crazy gone on ’er.
[US]F. Hurst ‘A Petal on the Current’ in Humoresque 92: One glass of beer could make him so crazy loony.
[US]R. Lardner ‘Zone of Quiet’ in Coll. Short Stories (1941) 66: She’s crazy wild about him.
[US]Warner, Junker & al. Color & Human Nature 123: Mr. Connor, with whom she has been having relations and who gets ‘crazy jealous’ of her persistent other affairs .
[US]‘Hal Ellson’ ‘Pretty Boy’ in Tell Them Nothing (1956) 120: I bought some reefers. I got crazy high quick.
[US]H.S. Thompson letter 21 Dec. in Proud Highway (1997) 301: Most people seem to think all Dobermans are crazy mean.
[US]D. Pendleton Boston Blitz (1974) 75: This guy Bolan is raging crazy furious.
[US]N. Pileggi Wiseguy (2001) 112: One night Paulie, who was usually calm, came into Robert’s crazy mad.
[US]T. Williams Crackhouse 16: Now? Now! Crack is crazy loco now. Now they smoke on the street, in the buildings, on the roof, anywhere the feeling strikes them.
[US]A. Swartz ‘Sweet, Tight and Hella Stupid’ in S.F. University High School Update Mar.–Apr. 2: crazy – the adverb, meaning ‘very’.
[US]W.D. Myers Autobiog. of My Dead Brother 200: Yo, man, I’m crazy scared.
[US]M. Lacher On the Bro’d 9: [H]e was like crazy-focused on partying and laying any hottie within arm’s reach.
[US](con. 1962) J. Ellroy Enchanters 113: It got crazy bad. The crowd quadrupled.