Dagger

Noun: A short but really awesome bladed weapon

Adjective: incredibly awesome, rad, or bad ass

Verb: To do something that is incredibly awesome, rad, or bad ass

Buster: Guess what happened yesterday?
Chaston: What?
Buster: This guy tried to mug me, but I stabbed him in the neck with my dagger.
Chaston: Whoa! That's dagger!
Buster: I know. I totally daggered him.