Lambda Lambda Lambda,Omega Mu,marijuana Revenge of the Nerds - Party

The nerds attempt to organize a party to impress the fraternity officials. However, they are tricked by the Pis, who falsely offer to be their dates only to completely snub them on party night. Another sorority, Omega Mu (known as the Mus, which sounds like "Moos"), come in their place, but they consist of social rejects themselves and the resulting awkwardness deadens the atmosphere. In desperation, Booger resorts to lighting large marijuana joints to liven up the affair, which proves successful. - wiki