- a current of escaping surplus steam, water, etc.: The safety valve released a violent blowoff from the furnace.
- a device that permits and channels such a current.
- a person who brags or boasts; a blow-hard.
- a temporary, sudden surge, as in prices: The Federal Reserve Board's credit tightening could cause a blowoff in interest rates.
- to permit (a gas under pressure, esp steam) to be released
- to emit wind noisily from the anus
- to reject or jilt (someone)
- blow off steam See steam (def. 6)
- a discharge of a surplus fluid, such as steam, under pressure
- a device through which such a discharge is made
