KMS exclamation 1verb 1adjective 1noun 3 exclamation1 •(Internet, slang) Used to express frustration: I am going to kill myself; fucking hell; fuck this.i left my wallet at home kms i don't wanna go back and get itmy mom found condoms in my room and now she wants to call me kms verb1 •(Internet) Kill myself.i'm not gonna kms over some petty shit like that adjective[before a noun]1 •Initialism of Kubo-Martin-Schwinger; applied to various concepts in quantum mechanics noun3 •Initialism of key management service. •Initialism of Kasabach-Merritt syndrome. •(historical) Abbreviation of Kriegsmarine ship, a ship of the Navy of Nazi Germany; used as a ship prefix.