shut up and color v. phr. mind one’s own business, keep one’s head down, do as one is told. Editorial Note: Most often used as a dismissive command toward someone perceived to be uninformed, inexperienced, or unimportant. The 1980 citation is probably a nonce usage, as the phrase is used there to talk about a completely literal act of keeping quiet and coloring. Etymological Note: Imitates a reprimand that might be given to a child who speaks when not spoken to. The meaning of “color” that is relevant here is “to use crayons to draw a picture or fill in the pages of a coloring book.” (source: Double-Tongued Dictionary)
Further reading
Rosalind from Montgomery, Alabama, says her mother used to scold her for acting like a starnadle fool. The more common version of this term is starnated fool, a term that appears particular to Black English, and appears in the work of such writers...
In parts of Appalachia, the expression give someone down the road means “to reprimand” someone or “tell someone to get lost.” In Ireland, to give someone down the banks has a somewhat similar meaning, apparently referring to...