Definitions by Asymmetrical

Dirty Irish Twins 

Half-Siblings born within a year of each other, who have only share one parent.

"Trisha and Kristy are Dirty Irish Twins"

"They're both 24, I thought they were just twins."

"Nah, they have the same daddy and two different mama's, Trisha turns 25 this week and Kristy turns 25 next month."

Dirty Irish Twins by Asymmetrical May 28, 2022