1. couch potato
Today we are going to learn “couch potato”. It’s a American slang to describe someone who is always lying on the sofa and doing something like watching TV.
A: Why isn’t your boyfriend with you?
B: He’s too much of a couch potato to go out on a Friday night.
2. fill out
Another phrase is “fill out”. It means that you write information in the spaces on a form or a file.
A: Please fill out this application.
B: Do you have a pen I can use?