This song is when all of the marines are asking girls out to the party.  The girls have no idea that they are being asked because they are “ugly.”  Around 1:05 Eddie Birdlace (the main character) says to one girl “no fiance, no boyfriend? Well if you ain’t a lesbian my name’s Eddie Birdlace!”  Throughout the song the marines are lying over and over again, saying things like “the cancer is spreading to my liver” in order to get the girls to say yes.  They all seem like really horrible people.