To organize a room in English, you would say "to tidy up a room" or "to straighten up a room." The phrase "to tidy up" means to put things in order or to clean up, while the phrase "to straighten up" means to put things in their proper place or to make a space neat and orderly.

The origin of these phrases likely comes from the concept of making a space neat and organized, in order to create a more comfortable and functional environment.

Here are some examples of sentences using these phrases:

"I need to tidy up my bedroom before my guests arrive."

"Can you help me straighten up the living room? It's a mess."

"I always feel more productive when my workspace is tidy and organized."

"Let's spend some time tidying up the garage this weekend."

"I can't relax in a cluttered and messy room, so I always make sure to straighten up before going to bed."