Dabbin' or Sneezin'
Dabbin' or sneezin' is when you see someone else do the elbow cover and you think they're about to say something embarrassing or make a mess.
My brother sneezed in the middle of a Zoom call and it was the worst thing ever.
At the restaurant, my dad sneezed and knocked over his water glass.
My friend sneezed so hard he looked like he was about to laugh.