like a spare prick at a wedding

be like a spare prick at a wedding

slang To feel awkward and out of place at an event. Primarily heard in UK. I don't know anyone here, so I've been like a spare prick at a wedding, just standing in the corner by myself.
See also: like, prick, spare, wedding
Farlex Dictionary of Idioms.

like a spare prick at a wedding

BRITISH, INFORMAL, VERY RUDE
If someone is like a spare prick at a wedding, they are not needed and nobody pays attention to them. I sat on the edge of a bench feeling like a spare prick at a wedding. Note: `Prick' is a slang word for penis.
See also: like, prick, spare, wedding
Collins COBUILD Idioms Dictionary, 3rd ed.
See also:
  • be like a spare prick at a wedding
  • a spare prick at a wedding
  • wedding
  • prick (one's) ears up
  • be (batting) on a sticky wicket
  • a sticky situation
  • a sticky wicket
  • a pretty kettle of fish
  • fine kettle of fish
  • an awkward customer