phr. "the end"; "good-bye guys." (Spanish.)
If you step out in front of a car like tha again, it's adios muchachos.
I've got a gun aimed at your navel. If you move so much as one muscle, you can just say adios muchachos.
An insignificant person or thing.
Tell that abbreviated piece of nothing to get his tale over here, but fast!
Why don't you drive your abbreviated piece of nothing over to the service station and have a muffer put on?