from the GNU version of the Collaborative International Dictionary of English
- intransitive v. to let steam escape through a passage provided for the purpose; as, the engine or steamer is blowing off.
- transitive v. to empty (a boiler) of water through the blow-off pipe, while under steam pressure; also, to eject (steam, water, sediment, etc.) from a boiler.
Sorry, no etymologies found.
"Mrs. Moody," I said, "Bicky needs the chance to blow off steam on a regular basis."
After our less-than-successful visit with Dr. Montgomery, both Joe and I decided we needed to blow off some steam.
I have known many in distresses of conscience that have been able to blow off every thing, until God comes to swallow them up with the infiniteness of God.