the.com/third wheel
The one person present who definitely did not need to be invited on this date.
means A third person tagging along with a couple, left pedaling along uselessly while the two of them do the actual steering.
from Borrows from the image of a tricycle or old three-wheeled vehicle, where two wheels do the real work of balance and motion and the third just trails along, redundant. The phrase settled into English as slang in the 20th century for the superfluous extra person in a couple's company — present, but not propelling anything.
- origin logic
- bicycles need two wheels, not three
- social role
- laughs at jokes meant for someone else
- survival tip
- bring a phone, pretend urgent texts exist
- upgrade path
- becomes best man or maid of honor eventually