Meaning ofblow offin English

Verb

1. to let off steam through a passage
   The whistle will blow off steam when the train is in motion.
2. to reject someone's advances; shut down offers
   She had to blow off the annoying guy who kept asking her out.
3. to remove by blowing air
   The strong wind will blow off the loose dust on the surface.
4. to vent or reduce pressure; release steam
   The safety valve is designed to blow off excess pressure in the system.
5. to shirk a duty; disregard someone
   He decided to blow off the meeting and go to the beach instead.
6. to buy food or drink for someone; treat them
   The company will blow off their entire budget on advertising this year.
7. to use up or spend something quickly
   The bartender offered to blow off a round of drinks for the birthday girl.