There are 2 definitions of blow off in English:

blow off1

informal Break wind noisily.
More example sentences
  • Women have strong ones and men blow-off far more often… it’s a biological fact.
  • Did you blow off?
See parent entry: blow

Definition of blow off in:

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Word of the day dinkum
Pronunciation: ˈdɪŋkəm
adjective
(of an article or person) genuine, honest, true

There are 2 definitions of blow off in English:

blow-off2

Line breaks: blow-off

noun

[mass noun]
The action of emitting a gas, typically to reduce pressure to a safe level: [as modifier]: steam blow-off piping
More example sentences
  • Make sure you inspect the components after blow-off to ensure thorough cleanliness.

Definition of blow off in: