Foebaby 

When someone's baby momma has sex with their mans foe or enemy and has a kid

My bm just had the foebaby and it looks like my enemy

Foebaby by Big dick dude October 22, 2018

Fobaby 

Term for beautiful asian girlfriends, combination of "fob" and "baby".

I have a fobaby, I love her more than anything.

Fobaby by mah tee March 27, 2004