Blow off steam is an expression used to describe the act of releasing pent up emotions or energy. Geysers, which are seven letters long, are natural phenomena that involve the eruption of hot water and steam from the Earth's surface. RANT, which is four letters long, is a long and angry speech. VENT, also four letters long, is an opening that allows air or gas to escape. HISS, also four letters long, is a sound made by air or steam escaping through a small opening. ERUPT, which is five letters long, is an explosive release of energy. Together, these crossword solutions provide a vivid description of the act of blow off steam.