3. Revenge of the Nerds (1984)
This '80s classic about a bunch of social outcasts who try to start a fraternity established a romp-com equation that refuses to die: geek vs. jock conflict x a healthy dose of perky breasts + weed + full frontal by way of high-tech voyeurism + casual homophobia = comedy gold!
Also, someone named "Ogre." That's kind of a must. Why do you think Shrek was so successful? It's not because Mike Myers is funny, people.