fly by the seat of your pantsinformalGUESS to have to deal with a situation by guessing what to do, because you know very little about it 〔因对某事几乎一无所知而〕凭感觉处置 SYN wing it Sometimes you’ll get back and find that things have changed, so you’ll be flying by the seat of your pants for a while. 有时候你回过头来发现情况又变了，就只好暂且见机行事了。
→ fly by the seat of your pants at fly1(14)