For meaningful lyrics that you can actually do some fucking analysis on (I'm with Shivari on 'waste of class time'), try the Weakerthans. Don't know what songs of theirs have music videos. Pretty sure Aside does, but really you want something from Reconstruction Site, my personal favourite album EVER. Literally ever. I'm listening to it right now and I didn't even see this, think of it, and put it on.
OK, The Reasons has a video. Not the most meaningful song. How old are you, out of interest? If you've done Foucault they've got a song about him, with a video, Our Retired Explorer. Civil Twilight's good. So's Tournament of Hearts. Aside is a great song. Ah, hell, pick what ya like from here http://www.theweakerthans.org/audiovisual. Unless you follow that link and don't like them. But, if it strikes a chord (ha) the lyrics are among the best you're going to find.
If you don't like, try some of the folk stuff by Springsteen. I'm sure you can find something to analyse in there. 'Devils & Dust' (the song) is about the Iraq War, and I'm sure that has a video.
Alternately Subterranean Homesick Blues. I love that song and video.
Ah, hell, wish my school had been that fun.