a fab friend who's really pretty and unique and has a brilliant music taste. unique name generally after Megenta in TRHPS.
a megenta is usually obsessed with anime and has really bRIGHT eyes and soft hair. If you know a Megenta you'll like her. Megenta is a fabulous friend and everybody who doesn't have a megenta in their lives' are missing out, but you can't have mine; sorry.
"Wow! Look at her!"
"Yeah, she must be a Megenta."