whoops, there go my trousers UK /ˈʍʊps ðɛː ˈɡəʊ maɪ ˈtɹaʊzəz/US /ˈwʊps ðɛɚ ˈɡoʊ maɪ ˈtɹaʊzɚz/ phrase1 •Used to describe a genre of farcical theatre plays.Four Rooms is the latest attempt to combine multiple directors' skits into one film. It is also an attempt to mix "whoops!-there-go-my-trousers" farce with the slick kitsch pop-art comedy. — 1995