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.
To start doing something enthusiastically and energetically
We have a lot of work to do today, so let’s get stuck in.