Green’s Dictionary of Slang

wick-wack adj.

[redup. wack adj. (1)]

(US black) inferior, second-rate.

[US]Boogie Down Productions ‘My Philosophy’ 🎵 They all just wick-wick-wack.
[US]Dr Dre ‘Lyrical Gangbang’ 🎵 I begin to bust / on the wick-wack, fucked up suckers you can’t trust.
Crooked I ‘All I Ever Wanted’ 🎵 Y’all, you was wick-wick-wack way back in the day.
[US]Snoop Dogg ‘So Gangsta’ 🎵 Whick-whack niggaz did black folks so wrong.