Ever had someone else ruining a date between you and your crush? Or just a friend that's ruining the mood between you and another? A third wheel? In Chinese we call that
电灯泡
diàndēng pào
Example:
你今晚和我们一起去看电影吗?
nǐ jīn wǎn hé wǒmen yīqǐ qù kàn diànyǐng ma?
Are you going to the movie with us tonight?
不了,我不想当电灯泡哈哈。
Bùle, wǒ bùxiǎng dāng diàndēngpào hāhā。
Nah, I don't want to be a "light bulb" haha.