Definition from Wiktionary, the free dictionary
brush off (plural brush offs)
- Alternative spelling of brush-off.
- Used other than as an idiom: see brush, off. To remove something with a brush.
- (idiomatic) To disregard (something), to dismiss or ignore (someone), as unimportant.
- To depart with a sweeping motion.
- Snatching his hat, he brushed off like the wind.