Adj. The feeling that one has after applying or being accepted to college. WARNING senioritis may cause students to: loose focus, stop taking notes, stop bringing note books, stop bringing bags, not care at all about tests and grades, and feel massive urge to revert back to preschool behavior (this includes napping at inappropriate times, and coloring in hello kitty or disney princess coloring books).
Amy: Did you study for the McCully Test?

Emily: No I have been coloring instead, it seems like a better use of my time.
Amy: I can't wait to hear back from schools, then I can have senioritis as bad as yours.
by Emmiebeee January 15, 2010
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A condition typically affecting high school seniors, resulting in the loss of basic motor skills such as: attending class, doing homework, and giving a shit.
Teacher: Can anyone give me an example of senioritis?

Class: Eh.
by AnnihilateAllHumans April 27, 2016
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When someone is nearing the end of their senior year and they just can't get modivated about school, or responsibilities.
After prom senioritis was in full effect.
by Elaine April 23, 2004
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A crippling disease that strikes high school seniors. Most cases of senioritis tend to start after college applications and mid-year reports have been sent in. This entails a student not doing any work whatsoever, dismissive attitude, increased absences, general laziness, an over-excessive wearing of sweatpants/sweatshirts & resentment towards taking all those hard classes to impress a favorite college which the student most likely won't attend because of how expensive it is. The only known cure to senioritis is a phenomenon known as GRADUATION.
Teacher: Class, here's a 10 page essay on insert cruelly long & boring novel here to be done by Friday.

Class: Fuck this shit, it's April & my senioritis kicked in about a month ago.
by MommaMayI May 17, 2010
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The brain disease you get at the end of your senior year.

The poor thing let her grades slip at the end of the year.

Yeah, I heard she came down with a bad case of Senioritis
by 8089364496 January 30, 2009
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The state of being a senior in high school, after receiving an admission to the university or college of your choice. It is the point when one is almost incapable of taking school seriously, because a good average is no longer necessary.
Symptoms of senioritis are lower grades, increased partying, and a lot more sleep and free time.
She already got into McMaster, with a 95 average. Now all she has to maintain is a 70. I think she's about to come down with a serious case of senioritis
by SingingStorm May 20, 2009
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When seniors pass first semester and start not giving a shit second semester cos they know they made it and theyre going to graduate. Only cure For this is graduation day
Girl 1: "dude why are you wearing sweatpants"
Girl 2 : "I got senioritis man. "
Girl 1: "shit"
by maccaronitoni November 26, 2014
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