verb. To laugh at the jokes of a movie you have already seen before they happen, esp. if the people around you have not seen the movie.
1. I can't watch movies with my mom because she keeps prelaughing at everything.
2. We were watching Uncle Buck and I didn't laugh as hard at the principle's office scene because someone was prelaughing before Buck even sat down.
2. We were watching Uncle Buck and I didn't laugh as hard at the principle's office scene because someone was prelaughing before Buck even sat down.
by woodenrocketdave November 2, 2009