e-fenestration
When you're busted for doing something dumb and you accidentally switch to another dumb thing, like you're trying to hide but you're just making it worse.
I was watching a YouTube video of a dog eating a shoe, and my mom walked in, so I alt-tabbed to my math test and got caught with my pants down.
I was messaging my crush and my dad walked in, so I alt-tabbed to my email and got caught doing both.
I was playing Fortnite when my boss walked in, so I alt-tabbed to my history homework and got caught with my crush.