present participle of tell off

(informal) A reprimand, reproach, or lecture.

(idiomatic) To reveal everything, particularly information that is normally withheld. / Used other than figuratively or idiomatically: see tell, all.

A publication, usually a book or magazine article, which tells all, revealing everything, particularly what is normally withheld.

Telling all; revealing everything, particularly what is normally withheld.

(idiomatic, dated, colloquial) I do not believe what you said.

(idiomatic, colloquial) I do not believe what you said.

(archaic) Please explain (something the requester does not yet understand). / (idiomatic, usually sarcastic) Expressing incredulity, please explain (some claim or position the speaker doubts).

Betraying a confidence by disclosing private information.

To betray a confidence by disclosing private information, especially of a sexual nature.