Every Tom, Dick, and Harry
Meaning
Everyone, all ordinary individuals.
Example
The company’s newest model should appeal to every Tom, Dick, and Harry.
Origin
The use of masculine names in this phrase dates from Shakespeare’s time (he used Tom, Dick, and Francis in I Henry IV), but the current usage dates from the early 1800s.
Variants: “Every mother’s son” (1583) & “Every man Jack” 1800s). These 2 variants are British and occasionally used in America.