There's no doubt // He's the coolest one with the biggest mouth

As far as 'irritating classmate chichés' go, my ranking looks like:

10. The "I'm 20-30 minutes late to class every day" kid

9. The "Hey did you do last week's homework that took like 2 hours to do?...cool, can I see it??" kid
(also applies to partners who mysteriously lose their cell phones for 2 weeks then suddenly find them the day the group presentation is due)

8. The "You know... I could step out for a minute and blow my nose, but I'd much rather suck snot down my throat at 10,00 decibels for the next 120 minutes" kid

7. The "Oh dear, I forgot to switch my cell phone to vibrate again" kid
6. The "Oh dear, since I've forgotten to switch my cell phone to vibrate, I will have to take 2 solid minutes to find it and neutralize the 'Candy Shop' ringtone blaring from my bookbag" kid

5. The "I'll lean over and talk to you during lecture, even though you don't want to talk to me, just so I can get us both scolded" kid

4. The "Oh, you almost forgot to collect our homework!" kid
Who, of course, truly shines the brightest when you just remembered that that blank piece of paper so nicely folded in your book is the due homework. Sort of the anti-"can we get this test grade set on a curve?" kid.

3. The "Hey can I borrow a scantron/piece of paper" kid
Should probably be further down the ranks, but there is just something so irritating about using the word borrow. It's like not only are you going to prey on my good nature and get my last scantron (which will make me 'irritating classmate cliché' #3 come next test, but it comes back as such a backhanded compliment when you say that you are borrowing it.

2. The "I will make sure at least 17 times a day to not only blurt out the answer to a question, but make sure to add some sort of personal reference or opinion each time as to falsely inflate the perception that I am intelligent" kid

and far and away the worst one, surely garnering double spacing for emphasis:

1. The "I need to ask as many asinine questions as possible" kid.

This has to be the worst one. It just has to be. And for at least two reasons. One, because it pushes the teacher to the point where because this person asks so many questions that pertain to absolutely nothing in the text, they get revenge by putting this extra "covered" material on the test. The second reason being that this person can, if they have truly mastered their craft, singlehandedly tack on 10-15 minutes of extra classtime any given day.

Yeah my Business Law class not only carries a guy from the #1 position (whom also dabbles in some #10 and #9 as a hobby), but also an elder female from the #2 spot! The guy asks 3 consecutive questions, one in regards to "who has legal obligation if someone breaks into...say... a butcher shop, and gets accidentally locked in the freezer and is severely injured and tries to sue" And then his tag team partner will chime in with an answer to question, followed by delving into "I know this because I went to civil court one time, and Judge Johnson talked to me...yatdadada" It is bad news.

I really think that the older lady teaching it is realizing that she is going to have to rule over this with an iron fist. The other week she was funny, as the lady was launching into some side story far from the point, the teacher began waving her arm around in a circular motion shouting aloud "Get it out... GET IT ALL OUT!" And the other day when #1 Stunner began blurting out some question like if a unicorn tears up your sofa might that be considered a tort when she put up the stop sign hand and told him not to ask any more questions basically. No such thing as a dumb question indeed. Gooooo school!