When something is, or is done extremely well, or when a man/woman is very attractive.
that chocolate cake kills it
(about a hot woman) she kills it
Finishing something in an epic way.
Often used to refer to a band making a great performance.
Canadian metalhead 1: Did Three Days Grace kill it last night?
Canadian metalhead 2: They really did! So did Billy Talent and Nickelback!
performing at the highest level; ripping;
That guy surfing the blue board on the south side this morning was killing it...
always looking fresh, somebody who is doing well.
Nick Spanos is killing it
swag fresh
A southern east coast slang (typically used in Northern Virginia) when someone gets excited or shocked.
Me: Bruh I'm boutta see Reggie Reg perform in Woodbridge.
Friend: Kill.
Friend: My brother passed away.
Me: Kill!
Succeed extremely well at a task. Similar to "nailed it."
Wow, did you see that ski jump? She really killed it!