臭屁

臭 = 犬 + 自 : Charlie Chaplin (ch) has not showered for days and is very stinky (臭). In the outhouse's bathroom (ou4) the Saint Bernard dog (犬) even holds a mirror (自) in front of him to let him see how filthy he looks.

屁 = 尸 + 比 : Pocahontas (pi) is trying on her new bikini (比) in the space station's bathroom (Ø4) but she can't stop farting (屁). At least she thinks she is, in reality an invisible ghost (尸) is farting all the time to make her think so and prank her.