
Play gooseberry
Unwanted Presence
The phrase implies the person's presence is intrusive or uncomfortable for others, especially a couple.

When I realized they wanted privacy, I felt like I was playing gooseberry.
Romantic Context
Often used when a couple wants to be alone, and a third person is present, making the situation awkward.

Hanging out with them on Valentine's Day made me the gooseberry.
Idiomatic Usage
Understand it as an idiom, not to be taken literally. 'Gooseberry' doesn't refer to the fruit in this context.

I declined the invite, not wishing to play gooseberry at their anniversary dinner.
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