A person who has a warm, friendly personality. A Coobie is generally very musically inclined, and is very passionate about music; has lots of friends, but few people that are very close; is in love with the wrong person, while the right person is just waiting to be seen.
He's such a Coobie! He can always make me smile. I saw him in band today, talking to that girl. I wonder when he'll notice she isn't right for him?