The main expression is an ironic attitude, perhaps because some netizens don't understand this meaning, so they add a dog's head expression to express irony. Show irony. "Boys can't wear gray pants" was originally a video of a young man wearing gray pants on Tik Tok's platform, which may be the reason why the pants are thin, which leads to obvious intermediate effect, plus some people's deliberate rendering.
It may be because the trousers are thin and the effect in the middle is obvious. Some people deliberately exaggerate the image. The main meaning of this stalk is that boys look like hooligans in gray pants, but there is nothing wrong with gray pants itself, just some people's misunderstanding.