A man or boy; a male person. He's a nice fella who always helps his neighbors.
A boyfriend or male partner. She introduced her new fella to her family at the party.
Used as a familiar form of address for a man, often to attract attention or add emphasis. Hey, fella, you dropped your wallet!
A person or individual, regardless of gender, especially in casual speech. That little fella can run faster than anyone on the team.