A person (usually a medical or law school student) who uses over 3 different colored highlighters, tabs every page in their notebook, and raises their hand after every question asked by their professor, regardless of if they know the correct answer or not. Gunners like to hear themselves speak. They use complicated words to make themselves sound smart even though they have no idea what's going on in class- they pretend they do. They are trying to intimidate you and eliminate competiton.
This gunner in my Chemistry class answers every question the professor asks, asked 5 questions during a 1hr class, and uses 8 different colored highlighters.
by Supanda L July 3, 2011
Get the Gunner mug.
A medical student that tries way too hard by keeping up with daily medical news, read medical journals on the toilet, and brings all their notes to the gym while "working out"
SC: Did you know that Ezetimibe (cholesterol lowering drug) is CI in heart disease? It said so on AMA-news this morning.
JY: What's Ezetimibe? Dude what a gunner!
by Mr. Jefferson's Med Student November 16, 2009
Get the Gunner mug.
Whoa, look at her big big gunners!
I'd hang on to those puppies!
by mmmlele August 13, 2007
Get the gunners mug.
A player, member or supporter of the North London based football team, Arsenal FC

That guy is celebrating a victory. He must be a gunner!
by D.N.I September 17, 2007
Get the Gunner mug.
In Canada and the United States, a "gunner" is slang for a hyper-competitive student, usually a medical, nursing, legal, or dental. Gunners will do whatever it takes to be the best. This ranges from working very hard to sabotaging peers. The gunners are normally either concerned with getting into a professional school or excelling in the professional school to continue on to a specialty.
The top student in your class, anyone sitting in the front row, anyone who uses a three colored pen in university/college.

Gunner: *Gives correct answer no one else knew*

Average college student: "Of course he/she knew the answer, he/she is such a 'Gunner'!"
by GradeE November 10, 2013
Get the Gunner mug.
To turn a heterosexual person into a homosexual person; normally relating to girls.

Homosexual Recruiter
Dude, she was totally straight before but since she met her she got totally Gunnerized and now dates girls.
by TR8IN October 1, 2008
Get the Gunnerize mug.
A Gunner is usually a very competitive person. Most uses are in the context of a highly competitive and sabotaging medical student.

For example, a medical student who claims he doesn't study and wants a non-competitive speciality like internal medicine while he is preparing for plastic surgery.

Basically, someone working hard in the background.
Hey, did you study that lecture? No? Don't listen to Mohammed again it is included in the final, he is such a Gunner!!
by Subsaharan May 2, 2019
Get the Gunner mug.