letted the cat ouf bag (verb) blurt: utter suddenly
Sinonime: beside the question, extraneous, immaterial, inapplicable,
incidental,
inconsequential,
insignificant, irrelevant, nihil ad rem, not at issue, not important, not to the purpose, off the subject,
pointless,
unimportant, unrelated, wide of the mark, wide of the point
Antonime: keep quiet