bounce house
n.—Gloss: An inflatable structure in and on which children can climb and jump. Note: Also often called “bouncy house.” «Party rental agencies, too, are trying to please customers by discounting their inflatable Sesame Street bounce houses.» —“Fewer fans are splurging on Super Bowl bashes” by Tiffany Hsu Los Angeles Times Jan. 31, 2009. (source: Double-Tongued Dictionary)