Storyboards developed as a part of animation process to connect visual or sight gags…

In comedy, a visual gag or sight gag is anything which conveys its humour visually, often without words being used at all. The gag may involve a physical impossibility or an unexpected occurrence.^[1]The humor is caused by alternative interpretations of the goings-on.^[2] Visual gags are used in magic, plays, and acting on television / movies.

https://en.wikipedia.org/wiki/Visual_gag