A Half Japanese, Half Caucasian adolescent female who does not appear to be caucasian at all and courts with men 3 grades higher than their current.
Damn look at all these Masumi's. Lets get outta here!
by Sam Ham November 28, 2006
2 more definitions
an addiction to humping trees
oh i gotta masumi right now I NEED TO MASUMI
by bonka November 04, 2006