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.