In a sexual situation. When one partner passes a fart from his or her butt to the target's vagina, then seals it up. Like a hot air Balloon, for which the southwestern US town's fiesta is famous.
Last nightAlan gave me an Albuquerque Hot Air Balloon Fiesta. I've been queefing roadwarrior style all morning.
A more ridiculous scenario (compared to Clown Fiesta) in which no one is really sure on what is taking place. Usually happens in MicrosoftAzure and related documentation