let loose

This means to have fun with other people, usually talking, dancing, and drinking alcohol. Normally we have to be careful of what we do or say, especially at work, but when we “let loose” we can be more relaxed and outspoken. 

People don’t let loose anymore with all the cameras around.

She really lets loose after a few cocktails.

The phrase "let loose" has a positive, fun sound to it.

This phrase appears in these lessons: