1) a person who gets what they want and goes. "Grab your
nuts and go"
2) to squirrel out is to basically
ditch someone after you've got what you wanted.
"Did
Marcus come to your party, man?"
"Yeah he did and took a few shots then bucked, what a squirrel."
"Ryan squirreled out on us. He
said he'd give us a ride since we let him
stay the night, but then he never called back."