blow off

verb
RareNot in standard dictionaries
1

To remove something by blowing on it.

2

To vent, usually, to reduce pressure in a container.

3

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

4

Synonym of fart.

5

To shirk or disregard (a duty or person).

6

To abandon (someone) as the last stage of a scam.

7

To reject or shut down someone's sexual advances or other offers (e.g. a job offer).

8

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

9

To force to leave a course.

10

To perform oral sex on (someone); to give a blowjob to or suck off (someone).

#dated#slang