who is eddie related to in christmas vacation

Eddie is the cousin of the Griswold family in the movie "National Lampoon's Christmas Vacation". He is portrayed as a disheveled, unkempt, and somewhat rude individual who has a tendency to make inappropriate comments and engage in questionable behavior. Eddie's character serves as a foil to the more wholesome and traditional Griswold family, and his presence often creates tension and conflict within the story.