A derogatory term used to describe a person who ignores his friend after dating his friend's ex-girlfriend. A Moeller often tries to steal the friends of his former friends, and will insult his old friend to make himself feel superior.
He was shopping with us and just left when he saw his ex-friend.. he pulled a Moeller!
Happygirl that everyone loves. She’s an assertive leader. She stands by her belifs and makes sure everyone around her is happy even before her happiness. A Moella is a very secretive person who doesn’t like telling people everything about her. She’s not an open person to many people. A moella is social person but always appreciates time alone when given.