the coolest guy i know never cracks jokes in a proper way... he's funny in the way that in a big crowd he says to the guy next to him "oh i got a big one" and lets a fart out so that the other guy is the only one who can hear it... doesn't sound funny, but you should see him (well, smell him)
furthermore, he's the one that while asked something by a teacher, turns his head to a mate and makes a really scared face, without the teacher noticing
he also draws on his school-desk big d1cks and immature stuff like that, or writes idiot stories on other guys' diaries
he may sound to you as a total goof, but he actually is not:
this guy plays rugby and he's pretty built and strong, in fact when somebody jokingly insults him, he "playfully" punches his arm or pushes him away... i've seen lots of guys with haematomas because of him
he has been seen grabbing by the collar a pusher who was trying to sell him bad stuff... i mean, he's extremely funny but he also has a big reputation and is really respected, so nobody tries to call him a goofy...
he also rarely goes out with his classmates (he has friends outside of his class), but when he accepts an invitation, he makes the party going, since he brings weed, music and everybody relies on him to have fun
one thing that just came to my mind is that he NEVER acts this stupid with girls, because he actually doesn't consider them... not that he pretends not to see the hot girl next to him, it's like he doesn't see any girl in school, he just approaches hot babes at the club, but in school he spends his whole time with other guys