speak language

speak (one's) language

To say something or communicate in a way that aligns with one's preferences, desires, motivations, etc. A: "Look, I know all this technical jargon is pretty boring. Why don't we finish early for the day and go out for pizza?" B: "Oh yeah, now you're speaking my language!" A: "I'm a little worried about pitching my idea to the board of directors tomorrow." B: "Just focus on how your plan will boost profits, and you'll be speaking their language."
See also: language, speak

speak someone's language

Fig. to say something that one agrees with or understands. I gotcha. Now you're speaking my language. Mary speaks Fred's language. They get along fine.
See also: language, speak
References in classic literature ?
The pen employed in finishing her story, and making it what you now see it to be, has had no little difficulty to put it into a dress fit to be seen, and to make it speak language fit to be read.
Our ability to speak language is an inborn characteristic of our species.
However, the most influential negative is their inability to speak languages.
For instance, Latin America generally refers to all countries south of the United States that speak languages descended from Latin (mostly Spanish, but also Portuguese and French).