Full House Party is a term used to describe a gathering of people who are all connected in some way. The term can refer to a family reunion, a birthday party, or any other type of gathering. The crossword solutions for the term Full House Party are PAIR (4 letters) and PERCH (5 letters). PAIR refers to two people who are connected in some way, such as a married couple, siblings, or friends. PERCH refers to a place where people can gather, such as a house, a park, or a restaurant.