When someone accidentally sneezes while kissing another person and ends up by some possible chance, shooting boogers up their nose. It's a gross sight to witness.
Girl 1: ''I messed up on our Tinder date last night with this guy.''
Girl 2: ''What happened?''
Girl 1: ''I accidentally Shnurped when we were kissing and now he won't talk to me anymore :(''
When you flatulate while taking a bath and have an unfortunate, incidental release of a little soft serve stool. Leaving one scrambling to escape their own filth.
I was relaxing in a nice hot bath today when I did a sherp. It was horrible. It went all brown real quick.