KMS - stands for k1ll my self. mainly used as a jokingly manner when shit you don't want to happen happens. Or you just actuallywant to k1ll yourself. (used while texting)
Can be utilised when you accidentally use personality A with friend group B. Works through text mostly.
Or just when you actually want to kiss your soulmate.
A : I'm so done. Imma kms.
B : Lmao why would you kys?
A : I can't kiss my soulmate in peace or what?
B : Wha-