ain't

verb5

1. •
   (informal, nonstandard) Am not.

   • I ain’t ready yet; gimme a sec.
   • Ain’t I a woman?
2. •
   (informal, nonstandard) Are not, aren’t; is not, isn’t.

   • That ain't right.
3. •
   (informal, nonstandard) Have not, haven’t; has not, hasn’t, when used as an auxiliary.

   • 'Okay, okay. Keep yo shirt on. Ah ain't done nuthen wrong.' — 1954
4. •
   (informal, nonstandard) Don’t, doesn’t.

   • Well, I ain’t wanna do that though.
5. •
   (informal, nonstandard) Didn’t.

   • I ain’t go into the bathroom last night that late.