In the movie RRRrrrr!!! (available on Netflix France) there is a recurrent use of the curse "Ta gueule !". I cannot understand if there is a word play going on or it is just for the sake of it.
The context is the following. During the Âge de pierre, the man charged of the patrol at dusk says: "Ça va être tout noir !" to the people he meets during his round. Every people then answers: "Ta gueule !".
Does "ta gueule" here just means shut up, or there is a word play that I do not understand?