A girl who is very smart and has a nice body and is very pretty. She has a great disposition and is almost always happy. She can make even the saddest people smile. She's very smart in school, but naive. She has always done good in school, especially math classes. She has a bangin' body and lots of guys prefer it. Shes not thick but she isn't skinny. Shes got a small waist and normal sized breasts. Her hips and thighs are widespread. If you fine a Mylanah, cherish her and treat her with respect.

to tell someone to calm down and relax.