Great, just a few ideas.
I think that webchameleon is being completely unfair, because this is a great flash. I understand that those tired of reading useless and slavish praise [yes, all of you who write 10 reviews and only write something like "liked the dick joke!"] might try to compensate by being abusive, but it's better to be constructive. Since most of the praise doesn't need to be said, I will here focus disproportionately on my criticism. No misconceptions--is a hilarious movie!
Before I start, with some of the things I'll say, you may think I'm some rabid feminist or simply too politically correct. That's not the case. I'm a guy who does enjoy a good, immature laugh pretty often. The only reason I'll make these complaints is that I think certain attitudes in movies like these make things uninteresting and demeaning to certain groups of people when they should try to make fun of everyone equally.
The animation looks great, and while it's not movement intensive I'd say BiffTheTimid is one of the better artists visually. I would say that main characters could use more individualistic features rather than embodying the same image of college-age, masculine physical perfection. I for one don't know any guys (or girls) that good-looking, and it would help people's self-image if there was more realism in art. However, other characters like Lady Gaga's mother and the random scotsman showed promise as more naturalistic. Oh, and get some voice actors. I do hope that the author has not alienated female friends
The fart joke that starts things off is right on, maybe just because I have been in that situation many times. The titular "crotchless chaps" joke is funny too, and I don't know if that would actually even the laying field in terms of "showing the goods", but hypothetically it is an interesting idea to go clubbing with.
I'm not sure I approve of how this treats the female characters, and the animation takes a sort of masculine bravado outlook that is rather immature in objectifying women and being generally braindead and uninteresting from an intelectual point of view. In particular, I didn't see the need to bring Lady Gaga or Queen Latifa into it since it was just a bit more spirited. It's not that making fun of them is wrong, its just that female characters seem to That "I'd poker HER face" quip just hints a bit at a double standard of sexual promiscuity. I just felt like putting that out there.
As for the three main characters, although I'm sure the author means to gently mock the kind of frat boys they are portraying, too little of the laughs seem to be with them rather than at them. I'd give Dim, Dan, and Tom of "The Decline of Videogaming" as what I find more rounded and sympathetic examples of young male protagonists in flash spoofs.
Since these are just a small part of my personal opinions, and don't reflect my admiration for the technical skill and great humor, I will give this a score that is not lame, abusive, or needlessly generous either. But I suggest on the technical side to get a friend or colleague to do the girl voices, or better yet to get different actors for a couple of different characters. It helps the humor when voices are convincing and viewers aren't paying attention to technical details.