(idiomatic) To talk for a long duration of time, at a rapid pace without giving others a chance to speak, or to the point of tedium.

(idiomatic) To speak quickly or excessively.

(intransitive, idiomatic, obsolete, slang) To prattle.

(idiomatic) A phrase indicating agreement with a previously stated suggestion to change a course of action.

Speaking, promising, or boasting much, but doing little.

(idiomatic) All talk and no results.

present participle of talk out of turn

(idiomatic) To make a remark or provide information when it is inappropriate or indiscreet to do so, or when one does not have permission or the authority to do so.

Synonym of look who's talking

Used when someone receives criticism for something by someone else who is guilty of the same thing.