air (one's) dirty laundry in public
To discuss very private, personal matters, especially that which may be embarrassing, in public or with other people. It always makes me uncomfortable when John starts going into all his personal problems whenever our friends get together. I just wish he wouldn't air his dirty laundry in public like that. People have an unnatural fixation on the personal lives of celebrities, but I don't see why they should be expected to air their dirty laundry in public.
air (one's) belly
To vomit. When I had the flu, I spent most of the time airing my belly.
air (one's) lungs
1. To use profane language. Mike always airs his lungs when he's frustrated. Please stop airing your lungs in front of the children!
2. To chat or gossip. That group of women gets together at the diner every Saturday night to have coffee and air their lungs.
air out
To expose something to fresh air (often to improve its scent). After I spilled water on the blanket, I put it on the back porch to air out. She opened all of the windows to let her house air out on the first day of spring. You need to air out your goalie pads before the next game—they stink!
air (one's) paunch
To vomit. When I had the flu, I spent most of the time airing my paunch.