by the seat of your pants
凭直觉或者缺乏有关经验或知识的情况下去做某事
口语·形容凭经验或直觉
英文释义
to do something by instinct or without a plan; to improvise or make decisions as you go along, often based on intuition rather than careful thought
例句
We had no map, so we drove by the seat of our pants through the countryside.
典故来源
源自早期飞行员用语，指凭感觉而非仪表飞行，后引申为凭直觉行事。