- 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.
- Slang. 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.
Origin of blowoff
First recorded in 1830–40; noun use of verb phrase blow off
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for blowoff
So far as I can tell, they're the weakest point, so if the mountain lets go, that is where the blowoff will come.The Flaming Mountain
Harold Leland Goodwin