charlatanear

To talk excessively, ramble on, or hold forth like a charlatán — someone who talks a lot, often persuasively but not always honestly, in the tradition of a market-stall pitchman selling dubious remedies. Can describe either harmless chattiness or a more pointed accusation of empty, self-serving talk.

• Se pasó la tarde charlataneando sin decir nada importante. — He spent the afternoon rambling on without saying anything important.
• No le creas, solo está charlataneando para vender más. — Don't believe him, he's just talking a big game to sell more.
• Basta de charlatanear, vamos al grano. — Enough rambling, let's get to the point.

Using charlatanear as a neutral synonym for charlar (to chat) — charlatanear carries a negative shade, implying excessive, empty, or manipulative talk, not pleasant conversation.

Often confused with charlar.