Mummy Shit
After taking a painful shit you end up walking like a mummy and/or zombie in order to not upset your asshole.
Wife: Are you okay dear?
Typical guy/husband: Yeah but I just took a big Mummy Shit and it hurts so bad!
Wife: Pig.
Typical guy/husband: Yeah but I just took a big Mummy Shit and it hurts so bad!
Wife: Pig.
shit mummy
When someone likes to get shit on in sex (insanely gross) the person getting shat upon is the shit mummy.
Sarah was John's shit mummy.