The act of doing a woman from behind, and then in the heat of the moment, pulling out, jamming an umbrella into her, then opening the umbrella so that it resembles the feathers of a peahen.
"I was wondering why he brought an umbrella over when it wasn't raining, but it became obvious what it was for after performing the peahen."
Pechines, When a penis tastes of cheese, or when your penis has a cheesey texture.
Also has the meaning of he dick tasted like shit and makes you wanna throw up.
Some people even use I tg for slangs
Peshenwengweng was used in the li ate 21st century when an artiste sang a song with that sound. It became a laughing stock hence people say it's an imaginary gun.