English Dictionary

blow off

verb

(transitive) To vent, usually, to reduce pressure in a container. / (intransitive) To let steam escape through a passage provided for the purpose.

I need to blow off some steam after a long day at work.

意味（1）

(transitive) To vent, usually, to reduce pressure in a container.

The radioactivity was released when they blew off steam from the containment vessel.

意味（2）

(intransitive) To let steam escape through a passage provided for the purpose.

The engine or steamer is blowing off.

意味（3）

(intransitive, euphemistic, UK) To pass gas; to break wind, to fart.

Women have strong ones and men blow off far more often. It's a biological fact.

意味（4）

(idiomatic) to shirk or disregard (a duty or person).

I decided to blow off the meeting and leave early.

意味（5）

(transitive) To forcibly disconnect something by use of a firearm or explosive device.

Her leg was blown off by a landmine.

意味（6）

(transitive) To remove something by blowing it.

In order to deal with deposits of soot on boiler-tubes while running, especially if poor coal is in use, locomotives are often now provided with blowers on the firebox back-plate which can be made to discharge a jet of high pressure steam towards the firebox tubeplates; this has the effect of loosening and blowing off the soot deposits.