To involve oneself in some situation or activity, especially that which one is not meant or welcome to be involved in. I would have gotten away with the money laundering if you hadn't gone meddling in the company's financial affairs! My parents are always meddling in my love life, trying to set me up on dates with guys I have no interest in.

To interfere or involve oneself with someone or something in an intrusive, unwelcome, or unsolicited manner. I would have gotten away with the money laundering if you hadn't gone meddling with the financial accounts! I wouldn't meddle with them if you know what's good for you—they have enough money and power to cause some real problems for you.