When a girl replies with a K with a period at the end ( aka Kdot) it means the girls in a bithcy ass mood so dont make a mistake she will bite your head off. LITERALLY.
Something that girls say to make boys angry.
Should never be said by anyone with a pair of testicles hanging between their legs.
Usually expresses discontent
Boy: Hey, sorry I had to cancel our plans, my grandma has cancer and I wanted to be with her for her final hours...
Girl: K.
Boy: wooooow whatta bitch