Gaggenschtäsh
When a guy shaves his junk into a mustache and forces it on someone's face while they're giving him a head, making them look like they're about to puke.
My man just did a gaggenstasch on me during a Zoom call. I was giving him a head and he had a full beard on my face.
My girlfriend’s brother walked in on her giving him a head and had a full pube mustache on her face. She threw up.
He came home and did a gaggenstasch on me while I was eating pizza. I dropped my slice.