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
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug