second banana

Definitions of second banana
1

n someone who serves in a subordinate capacity or plays a secondary role

Synonyms:
second fiddle
Type of:
foot soldier, subordinate, subsidiary, underling
an assistant subject to the authority or control of another

n a performer who acts as stooge to a comedian

Synonyms:
straight man
Type of:
performer, performing artist
an entertainer who performs a dramatic or musical work for an audience

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