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sistomie 

both a sister and homie.
she is my sistomie.
sistomie by the boss man22 October 19, 2011
Related Words
el8 sexzi beesh
A mix of brad pitt and mr. mitnick
sistom by sistom April 3, 2003
Pronounced (sis-um)

A childs parent is both their sister and their mother.

This word derives from the combination of two words sister and mother. The words used is the short form of each words which is sis and mom. The second meaning of sister which is a female offspring having only one parent in common with another offspring. Mom which means 1. A female parent.
The father of the offspring is also the father of the daughter which makes the female parent both the sister and the mother to the offspring. The sister and mother (sisom) is the offspring’s half sister and mother.

"In incest families common found in the southern states of North America sisters of brothers are also found to be their mothers."

"Bobby Joe who is Billy Bob's sisom recieves notice to attend the parent teacher conference on parent teacher night."
Sisom by UrbanPhonics October 28, 2012
Sigh - Wom: Sorry I Was On Mute. Lead-in to 50% of all statements on conference calls.
Me: So, in conclusion - does anyone have any further questions?
<silence>
Me: OK, thank you
<interrupt>
Bill: Siwom: Yes, I have a question...
siwom by pchristmann April 17, 2014

Sisomcha 

sisomcha she is a very kind person when she knows you, but people fool her kindness for her weakness, first she can be very friendly with you next thing you know she ignores you 24/7, very two faced but that's her charm
"omg..my girlfriend is being such a sisomcha"
Sisomcha by Very cool gamer January 30, 2022

Sismomtie 

Ones sister, mother, and auntie all in one.
Who was that?

Oh that was my sismomtie, my sister, mother and auntie.

WTF? Is your family tree a wreath???
Sismomtie by MON3YBACK0924! August 7, 2025