gooseberry
/ˈguzbərɪ; ?@ ˈgu:sberɪ; `ɡusˌbɛrɪ/ n
1 (bush with a) green, smooth, sour but edible berry (used for jam, tarts, etc) 醋栗树; 醋栗（用以做果酱、 果馅糕点等）
[attrib 作定语]
gooseberry jam 醋栗果酱.
2 (infml 口) unwanted third person present when two people (esp lovers) wish to be alone together 不知趣的第三者（夹在两人之间, 尤指情侣间者）
I didn't wish to play gooseberry, ie be the unwanted person. 我可不想当不识趣的人.