Be like a spare prick at a wedding British vulgar slang
Used when one is not comfortable in or not suitable for a situation
I was like a spare prick at a wedding in my huge new school.
I won't go to Helen's party as I don't want to be like a spare prick at a wedding among her friends.
To look absolutely ridiculous and out of place
The verb "be" should be conjugated according to its tense.
The associates of public figures must not be suspected of being a part of any impropriety.
After being fired due to my brother's inappropriate behavior in the public, I finally understood the saying: "Caesar's wife must be above suspicion."