Backfilling

Person 1 lays on back, pulling knees to chest, making an impromptu toilet. Person 2 then sits on "toilet", shits into person 1's ass. Person 2 "back fills" person 1.

Once Bill assumed the position, Marc began backfilling him.

Backfilling by Eggfarticus May 24, 2017

blackpilling

Communicating information or opinions that lowers the morale of people who share a common cause with you.

Saying that the situation is a lost cause is just blackpilling your comrades.

I will avoid mentioning how powerful the enemy is to avoid blackpilling people.

blackpilling by _Futurist_ June 21, 2019

Backfiring Bull 

When you (son) and your mum are having anal sex in her bedroom, your dad walks in. You insist him to fuck you in the ass. When he is fucking you, you cum in your mum's ass and she shits all the cum and shit out onto your face. When your dad is about to climax, he cum's on the shit, which is on your face, and smears it all around your body. This is the "Backfiring Bull".

Mum: Son do you want to fuck me in the ass.
Son: (Casual) ye sure, got nothing better to do.
(Mum and Son having anal sex)
Dad: (Walks in) What the Fuck?
Son: FUCK ME IN THE ASS DAD!
Dad: (Casual) sure, why not.
(When son's about to cum)
Son: Lets do the BACKFIRING BULL!
Mum & Dad: FUCK YE!!!

Backfiring Bull by Bob Thompson Jr. September 25, 2011