momager

I think that sounds even better than momager. :-)

Mumager has the nice added connotation of rummager – how many times do you see the mother rummaging around in the bottom of capacious bag with one hand while trying to keep kiddie in line with the other?

I like this. Can we do 'mumager' too for us that use 'mum'?

Portmanteau of "mom" and "manager". E.g. Dina Lohan is Lindsay Lohan's momager.