单词air-quotes
n.: 手势引号（用双手手指比画的引号，用以表示所用词语非常规意义）
手势引号（用双手手指比画的引号，用以表示所用词语非常规意义）:
imaginary quotation marks made in the air with your fingers when you are speaking, to show that you are using a word or phrase in an unusual way