Air guitar is a classic pastime for music fans who love to pretend they are rockstars. However, some people may feel stuck using the same old phrase to describe their air guitar antics. Luckily, there are plenty of synonyms to help spice up your vocabulary. Some options might include "invisible guitar," "phantom guitar," or "pretend guitar." You could also use phrases like "imaginary axe" or "air shredding." No matter what term you choose, the important thing is to keep rocking out and having fun. So don't be afraid to mix things up and try out some new air guitar slang.