Question: In the 1999 teen sex comedy film American Pie, the protagonist is caught masturbating with a pie after being told the sport-related euphemisms that became widely used after what worldly event?
Sentence (from "American Pie (film)"): American Pie is a 1999 teen sex comedy film written by Adam Herz and directed by brothers Paul and Chris Weitz, in their directorial film debut.
Relevant evidence: Yes