I didn't make this up or anything: one of my buddies told me about it. I wish I had. I wish I could just lie and tell you that I did. But I didn't make this shit up: Go Nagai did. If you're at all familiar with this living legend's body of work, you're probably well aware that he operates on several distinct wavelengths of crazy, ranging from kids' robots vs. monsters fare like Mazinger, dirty-old-man stuff like Cutie Honey, to balls-out exploitation like Violence Jack.
I can't read most of it, but the gist of Rambo Sensei is that it's a dirty-old-man gag comic. There's this dude who goes by-- and correct me if I'm wrong here-- Eraku Rambo, and he's totally pumped. He's ready to teach the living fuck out of high school and he doesn't care who knows it, not even the giant penis protruding from the roof of the school building. I don't really blame him, because from the way this book goes, all Teach really does is stare at naked girls and make cartoon wolf AH-OOH-GA faces.
But actually, Rambo Sensei deals with real problems facing teachers today, like the Amazon teacher, the mysterious Dokuro Banchou, and a co-worker who, I think, has sex with disembodied voices every morning. Anyway, Nagai seems to be bored by his own premise-- our Rambo barely even so much as fires a gun-- and as such the manga is a simple excuse to draw page after page of gratuitous nudity. The story culminates in a co-ed sumo tournament in which a disguised Rambo "wrestles" his way to victory. Then Nagai even gets bored of drawing sumo foreplay, and the whole manga comes screaming to an abrupt finish. Good night, everybody! He'll be here all week!
Anyway, if you really want to read Rambo Sensei (for the tits, I assume), here you go, knock yourself out.