Cách sử dụng
"Louse up" means to spoil or mess up something. For example, if you had a plan to go on a picnic, but it rained and you couldn't go, you might say "The rain loused up our picnic." It's a casual expression and is often used in informal conversations. So, if you make a mistake or something doesn't go as planned, you can use "louse up" to describe it.