1.to inflict or cause death.
2.to commit murder.
3.to be killed.
4.to overcome completely; produce an irresistible effect: dressed to kill.
Slang . to feel a smarting pain, as from a minor accident; sting: I stubbed my little toe and that really kills.
I think I kill facebook posts. I hate it though when you're having a comment conversation on FB and then there's just no response. I understand that conversations have to end, but at least like the final comment to give closure and establish that the conversation's over- that's what I always do.