When two unknowns look alike or are wearing the same colors of an outfit.
I walk into my office wearing black pants and a white blouse, and my colleague walls in wearing black pants and a white blouse, we are twinsies...
When you and your homie double team a bitch and you cum in her at the same time
Person 1: OH DUDE, I JUST CAME
Person 2: ME TOO MAN
PERSON 1 & 2: AWWW!!! TWINSIES!!!!!
Bitch: My husband is gonna kill me
Twinsieness: Any two gingers having identical shit in everything but vegetables. While one eats the flat wings, the other eats the drums. Saying the words caaat, blaaaack and baaak.
Becky and Karin revealing their extreme twinsieness today.
Refering to a pair of twin female siblings that one has.
Today's my twinsis birthday and we're gonna have a princess themed celebration!