Upperclassman

Someone who is older than you, or higher than you. Translated it means senpai in japanese.

"He greatly respects Mamoru, who is an upperclassman at his school."

by KattTheWeeb August 1, 2018

upperclassman

Any student in a high school other than a freshman. These students are usually pretty normal, but for some of them, the evolution from frosh to non-frosh makes them into total jackasses. These jackass-upperclassmen should be avoided by freshmen at all costs.

Upperclassman: Hey, you're a freshman, right?
Freshman: Uh ... yeah?
Upperclassman: Go clean the floor with your tongue.

by Duskmoon December 20, 2008

upperclassmen

10th,11th,and 12th graders in high school who think they have the right to be complete assholes and be jerks to all of the freshman just because they have been there longer.

upperclassmen:freshman suck!
freshman:your dating one....

by sarahhhhhhhhhhhhh June 7, 2007

upperclassmen

people who are "upperclassmen" aren't immature 9th graders. they are seniors and juniors, or the top grades in a school. everyone other than the youngest. freshman in high school are not upperclassmen, and shouldn't call themselves upperclassmen. 6th graders are basically the same social status as 9th graders, if not better.

"wow 7th grader you can't be mean to me. you're talking to an upperclassmen"-freshman
"actually you arent cool and your a freshman, not an upperlcassmen. you aren't a senior or junior, yeah your not coool."-7th grader and the rest of the world

by sg_em_rb_ninthgraders_BFF2 March 14, 2010

upperclassmen

The older people in high school(usually 11th and 12th graders) that think they have the right to leave out freshmen, treat them like they don't matter and always telling them to fuck off. They also tend to get lazy as fuck and party their dicks and pussies all night long on Fridays and weekends.

Guy 1: Hey dude can you please take me out to that party that's going on this Friday?
Guy 2: Dude, what grade are ya in?
Guy 1: Freshman...
Guy 2: HAHAHAHA!!! I'm part of the upperclassmen!!! Fuck outta here dude!!! Go home!!!

by AdomC November 22, 2015