(idiomatic) An "official" refusal to relay any further information, used for example in response to a question by a newspaper reporter or police officer. [from c. 1950]
The district attorney said, "No comment," when the reporter asked if he knew the identity of the murder suspect, for fear that the culprit might be a flight risk.
(idiomatic) A refusal to make the obvious impolite retort.
Source: en.wiktionary.orgFor some reason the creation was called a rhedosaurus, and although I can't remember where this name came from, I suspect Hal Chester or one of the writers coined it. Over the years, people have suggested that the first two letters relate to the initials of a certain animator. I have no comment. Ray Harryhausen
With his charm and charisma he has won us all, his creativity and magnificent talent have given us nothing more to ask for, and his free kicks, no comment. Alessandro Del Piero
As for my colleagues, it's strictly "No comment". Source: Internet
My consistent answer to the press was, “No comment.” Source: Internet
No comment was issued on the other claims. Source: Internet