Braggadocio

It's a pretty lame joke. Do you get it? I'm not sure that Indigo got it, but she translated it to the T.

女演员甲向女演员乙吹嘘自己名气如何如何大：“我一登台，观众一齐把嘴张开来了。” 没想到乙立刻瞪大了眼睛说：“胡说！怎么会大家同时打呵欠？”

"When I go up on stage," Actor Jia boasted to Actor Yi,the audience will open their mouths at the same time." Who would have thought that Yi would suddenly open her eyes wide and say,"Liar! how can everyone yawn at the same time?"