When a guy poops on a girl's vagina and then drags his butt up her chest to her face.
My girlfriend is a fecophiliac so I gave her a rusty trawler.
A very wealthy charector in the movie Breakfast at Tiffany. The main Charector Holly Golightly defines him as the perfect man shes looking for aka Sugar Daddy.
"I'm so broke these days, I should start dating Rusty Trawlers."
When a man has anal sex with a woman, then vaginal sex, then following the vaginal, the woman performs fellatio on the man. He then ejaculates in her hair.
"Dude, I totally did the rusty trawler on that chick last night! It was awesome!"