An academic and physical malaise that afflicts high school seniors that begins in May and lasts until graduation once they have been accepted into college or univeristy.
Grade 12 fatigue, academic illness, school sickness high school blues
Grade 12 fatigue, academic illness, school sickness high school blues
Jennifer's senioritis was so advanced that she was never able to attend any morning classes in the spring of 2008 as she slept away her mornings.
by zuker May 22, 2008

by Angela I. Britain September 8, 2009

When you are a senior and don't feel like doing anything but celebrating the last few weeks of your college career.
Oops! I should have gone to class yesterday since we did have a test. My senioritis has really kicked in.
by Chelt April 12, 2004

Inflammation of the Senior.
"The school doctor was here the other day, and he diagnosed me and five others with Senioritis. Man, this sucks."
by linda September 29, 2006

by MichaelJacksonIsNotDead September 16, 2019

Lifting weights all the time during your high school senior year because you want to get ripped before going off to college
by anwimasm April 8, 2012

A party thrown during your last semester at college. The graduate buys one or more kegs of beer and invites all of their friends to drink for free. This sometimes involves liquor as well. A tradition at Michigan Technological University.
Kate: I spilled beer all over the couch and my crotch at Mike's senior barrel. I was so embarrassed.
Dirk: Mark is charging for his senior barrel. Weak sauce. I don't think anyone is going to show up.
Tyler: I tried to get a keg of TILT for my senior barrel, but they don't make them them. I did get a free can cozy though!
Dirk: Mark is charging for his senior barrel. Weak sauce. I don't think anyone is going to show up.
Tyler: I tried to get a keg of TILT for my senior barrel, but they don't make them them. I did get a free can cozy though!
by trashed20 June 29, 2008
