Top definition
(v.) To bear children formed out of incestous relationships.
That guy fucks his sister because he likes to keep it in the family, and wants kids with her.
by Kung-Fu Jesus May 29, 2004
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