Someone who dates older men and is in denial. Generally they hide the relationship from their parents and it is
usually a high school teacher-student relationship.
Wow, Eric is a real Mevissen, he just went on a another date with that 29 year old guy.
Mevissen: define #2
One who is very pro-older men/women of the same gender, often tend to do everything in their power to cover up said relationships. Primary occurrence with said elder is generally a teacher-pupil relationship after the formality of the classroom has been breached.
Yo dude, that guy is Mevvin’ (Mevissen) it up over there! He’s mackin on his old math teacher good!