guitar face 弹吉他时候陶醉的表情

中文解释：
guitar face是指弹吉他时候的面部表情，通常是比较陶醉，甚至是有感觉痛苦的表情。

英文解释：
The act of making an unusual face while playing the guitar. The look typically resembles a look of pain, intense ecstacy, or sometimes even plain old gas.

例句：
John has some crazy guitar face.
约翰弹吉他时候表情很陶醉。

Bill looked at John's guitar face just now.
比尔刚才看了下约翰弹吉他时候陶醉的表情。