An extreme case of flunking high school. In which the individual stays more than 5 years in the same school. Above the super senior, a student that has been at the school longer than 98 percent of the student population and even some teachers and faculty.
High school typically lasts 4 school years. Well at least it's designed to be that way. Although there is a handful of students whom may excel and finish a year early or others who stay an extra year to catch up on credits.
Person 1: Bro who's that guy over, he looks like he's in his mid 20s!
Person 2: Oh that's just Kyle.

Bro's been here since 2015!
Person 1: Wait...
That was 7 years ago.

Person 2: Ik, bro's a literal founding father of this campus.
by reformedshibainu December 12, 2022
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