Green’s Dictionary of Slang

cray-cray adj.

[ext. on crazy adj. (2)]

(US campus) crazy, extreme, beyond limits.

Urban Dict. 🌐.
[US]Indianapolis Star 13 July E3: [headline] OMG! You’re driving us cray cray.
[SA]Mail & Guardian (Johannesburg) 24 Sept. 🌐 It’s unbelievable. If you’d have told me seven years ago [...] I would have said, ‘that’s cray-cray!’.
[US]C. Eble UNC-CH Campus Sl. Spring 2016.
languagejones.com 15 June 🌐 Cray Cray Note that the white mainstream use favors reduplication (so cray cray) whereas the AAE use does not (tha shi cray ‘That shit is crazy’).
Negus Who Read Feb. 🌐 These White folks about to go cray-cray up here.
[UK]‘Aidan Truhen’ Price You Pay 71: [T]hat fucker is craycray.
[UK]M. Hyde on Twitter 25 May 🌐 [Cummings] keeps going on about wanting to try to go back to work - having just painted himself as some kind of cray-cray freelance optician.
[US]J. Hannaham Didn’t Nobody Give a Shit 40: Vogue femme cray-cray wioth extra cheese.