A girl who's face has the distinct look of a mom. Momface can happen at any age and is not restricted to woman that have kids.

When you eat dirt for the first time and leave your family to build a shack in the woods

It's when an attractive young adult a female has a worn out expression due to children, or if the young female has a worn out look in general.

Type of face characterized as resembling one's mother more so than one's father.

when you annoy or embarrassed your mother to a point that she gives you a "I WILL KILL YOU" look.

please note that children who have been disciplined enough will eventually not take affect by this god awful stare of hateful anger.

if your new to this glare your body will do the following in this order.
1. shit your pants
2. have a mini-stroke of fear
3. will give in to fear
4. die a little inside