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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
Snotty to Freshmans.
Damn, that Senior has Senioritis, he's being all snotty.
by elisekim October 24, 2007
the disease that hits old people of around the age of 70, symptoms are grey/white/no hair, hunched backs, cronic deafness, walking canes, and most importantly slow driving!!
Person 1 ~ dude why are they driving so slow!!!

Person 2 ~ dude i see grey hair and the radio is up loud!

Person 1 ~ damn they must have senioritis
by Jade is sweet June 10, 2005
1. When freshmen became obsessed with senior boys and can't seem to cure their obsession with them.

2. When underclassmen look up to seniors...alot.
1. *sighs and stares at senior boy*
"Meghan, we need to cure you of your senioritis."

2. "There's Missy talking to her seniors again."
"Dude, she's got major senioritis."
by Pelican June 08, 2005