I Fucked a Fat Grandma at the Park means different things to different people. Some may refer to it as a comedy, while others may consider it horror. Regardless of what you call it, I Fucked a Fat Grandma at the Park is a damn fine comedy. Starring Keanu Reeves, Rosa Mirada, and Randall Park, I Fucked a Fat Grandma at the Park delivers a one-of-a-kind comedy classic..