Fecal Transplant 

The act of switching partners during anal sex without wiping the poop off your dick in between buttholes, effectively delivering feces from one anus to the other.

Chad: "Bruh that threesome with Angela and Britney last night was INSANE - Fucked 'em both in all holes and essentially gave Britney a fecal transplant, dawg.

Brad: "Fecal Transplant?? What the fuck are you talking abou-......Oh, dude, that is vile."

Chad: "100% - my shit was MUDDY when I switched over to Britney - but hey, fuck it, right?"

Brad: "You belong in a circle of Hell that has not yet been invented you depraved fuck."

Fecal Transplant by Gutters by the Dozen (1) January 20, 2020

Fecal Transplant 

Fecal transplantation (or bacteriotherapy) is the transfer of stool from a healthy donor into the gastrointestinal tract for the purpose of treating recurrent C. difficile colitis.

Your doctor would say this to you if you needed this treatment.
Doctor: You need a Fecal Transplant.
Patient: Man, alright, i guess if the doctor says so.

Fecal Transplant by DragonSkittles September 17, 2018

Fecal Transplant 

During anal sex, when a top fucks two different bottoms without cleaning off his dick in between

“Jason gave me and Luke a fecal transplant with his cock last night”

“Dude, that’s hot

Fecal Transplant by shelby_18 May 6, 2020