a fifth wheel



a fifth/third wheel

  (American)
someone who is in a situation where they are not really needed or are ignored by other people I don't have a role in the office any more - I feel like a fifth wheel.
See also: fifth, wheel

Common Names:

NameGenderPronouncedUsage
KasiaKAH-shahPolish
Carolus-Ancient Germanic (Latinized)
Jabbar-Arabic
Yelizavetaye-lee-zah-VYE-tah, ee-lee-zah-VYE-tahRussian
Castle['ka:sl]
CassidyKAS-i-deeEnglish (Modern)