In which two individuals do not share the same mother or father but rather connected through the same sibling.
by ThtCoolKid November 17, 2019
 Get the Quarter siblingmug.
Get the Quarter siblingmug. Child of a person's father with that same person's maternal aunt or child of a person's mother with that same person's paternal uncle.
My three-quarter-sibling is a good person.
by Mr. Jacov November 23, 2019
 Get the three-quarter-siblingmug.
Get the three-quarter-siblingmug. When a man and a woman have a baby together, then the woman realized she chose the wrong spouse when she met the man’s brother. They decide to have a baby together. These two children are known as “three-quarter siblings.”
“Dude! I heard she fucked his brother, and had ANOTHER kid! They are going to be three-quarter siblings!”
by baeify September 27, 2021
 Get the Three-Quarter Siblingsmug.
Get the Three-Quarter Siblingsmug. 1- Child of mother and of uncle (father's brother) simultaneously.
2- Child of father and of aunt (mother's sister) simultaneously.
3- Cousin and half-sibling simultaneously.
2- Child of father and of aunt (mother's sister) simultaneously.
3- Cousin and half-sibling simultaneously.
Three-quarter-sibling.
by Chupite November 20, 2024
 Get the three-quarter-siblingmug.
Get the three-quarter-siblingmug. 1- First cousin and half-sibling at the same time.
2- Child of mother and of uncle (father's brother) at the same time.
3- Child of father and of aunt (mother's sister) at the same time.
2- Child of mother and of uncle (father's brother) at the same time.
3- Child of father and of aunt (mother's sister) at the same time.
Three-quarter-sibling.
by Jazigurn October 28, 2024
 Get the three-quarter-siblingmug.
Get the three-quarter-siblingmug.