a dutchman's blow
Snot flying out of your nose like it’s trying to escape a prison, and you’re the guard with a hand in the way.
He did a Dutchman’s blow in the hallway. The kids laughed like it was the best joke ever.
I did a Dutchman’s blow at lunch. My sandwich got a face full of snot.
She did a Dutchman’s blow in the gym. The coach was not happy.