air guitar
noun/ˈeə ɡɪtɑː(r)/
/ˈer ɡɪtɑːr/
[uncountable, countable]- used to refer to the actions of a person playing an imaginary electric guitar, especially while listening to rock music
空气吉他（尤指听摇滚乐时佯装弹吉他的动作） - Whenever he hears this music, he starts playing air guitar.
每当听到这首乐曲，他便开始做出弹吉他的样子。
- Whenever he hears this music, he starts playing air guitar.