My extra herb means I'm extra cute.

Lily:  I was telling Chapel (school friend) about how Si gives kisses and he told me that 'we need to teach that Si how to kiss 

right!'  I told him 'Si has Down Syndrome!'  He asked me what Down syndrome was!  I told him'down syndrome means he was born with an extra thing .... I think it's called a herb. 

Me: (laugh out loud) they're called chromosomes!

Lily:  oh!  It's not a herb!