Meaning of the word "play gooseberry" in English

What does "play gooseberry" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

play gooseberry

US /pleɪ ˈɡuːs.ber.i/
UK /pleɪ ˈɡuːs.bər.i/
"play gooseberry" picture

Idiom

to be an unwanted third person with two people who want to be alone, especially two lovers

Example:
I felt like I was playing gooseberry when they started holding hands.
We wanted to have a romantic dinner, but my little brother insisted on coming along and playing gooseberry.