Moose is a generally cool nickname for everyone. It promotes all things stupid and unexplained, "Moose" love to eat and sleep and be generally funny at a cost to thier street cred and limbs. A kind endearing term.
I should know... it is my nickname... thank you very much
To say hi to a moose: "Howdy Moose!"
To ask for something: "Mooshy... please can I..."
To annoy: Call by their real name... it really annoys them.