Top definition
Children conceived by superfetation with multiple fathers.
"Wait, you and your twin have different dads?"

"Yeah, we're hemifraternal twins..."

"But you're white and he's black..."

"So, my dad knocked up my mom and then 3 weeks later she banged my bro's dad...she got pregnant twice!"
by ManTown February 16, 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