Top Definition
a sister-cousin is when your baby's daddy has a child with your sister-- your baby and her baby are sister-cousins.
"im going to the movies tonight with my sister-cousin"
by scrapwebb January 06, 2012

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×