Green’s Dictionary of Slang

vapors n.2

[? obs. SE vapours, a fantasy, a foolish boast]
(US black)

1. a newly realized desire for an individual who, once shunned, has now gained status/material possessions and is thus suddenly alluring.

[US]G. Smitherman Black Talk.
[US]‘Touré’ Portable Promised Land (ms.) 157: We Words (My Favorite Things) [...] The breaks. The beast. The blues. The vapors.

2. jealousy.

[US]G. Smitherman Black Talk.