A person who is competitive,overly-ambitious and substantially exceeds minimum requirements. A gunner will compromise his/her peer relationships and/or reputation among peers in order to obtain recognition and praise from his/her superiors.
That chic in the front row of our class who always raises her hand, takes on additional assignments, and wrote a 25 page answer on our final when all that was required was 10 pages is such a gunner.
A person who will do anything for you and will stick by your side no matter what. A Gunner is someone who is hot, cute, and adorable all at once. Gunner is also a sweet, kind, and romantic guy. Gunner loves spending time with the people he loves and will do anything to ensure their safety. You can’t have a better friend than a Gunner. He’s the best you’ll ever get. If you ever meet him or even start dating him, NEVER and I mean NEVER let him go.
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.
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!