‘趟雷’ literally means 'to step on a mine' — a dangerous, life-threatening act. The character 趟 (tàng) here is a verb meaning 'to tread through' or 'to step into', often used with hazardous terrain; 雷 (léi) means 'mine' or 'landmine'. Together, the phrase vividly evokes walking blindly into peril.

Figuratively, 趟雷 describes taking extreme, ill-considered risks — especially in social, professional, or emotional situations where consequences are unpredictable and potentially severe. It carries strong negative connotations of recklessness, naivety, or being manipulated into danger. Common contexts include business decisions, romantic entanglements, or political controversies. Unlike neutral risk-taking terms like 冒险 (mào xiǎn), 趟雷 implies avoidable danger, poor judgment, and likely fallout — it’s colloquial, slightly dramatic, and widely used in online discourse and spoken Mandarin.