'Guest House Paradiso' is a 1999 British black comedy film that serves as a spin-off to the 1990s sitcom 'Bottom'. The movie depicts Richie and Eddie, two idiotic, violent perverted friends, running a barely-manageable hotel, Guest House Paradiso, and the events that follow when a famous Italian model goes there.
Richie, breaking into one of his guest's rooms, discovers a red rubber bikini, and decides to put it on. Failing to get it off, he's assisted by Eddie, who inserts the hose of an air canister into it, intending to let it inflate to a point where he can pop it with a sharp object. Once it reaches a very large size, Eddie runs into it with a knife, and the resulting force sends him flying out of the hotel.