from 8-10 am and 4-6 pm when heavy traffic makes it easier for perverts to grope women on the subway; especially in reference to new york city
"i better get my mace ready because it's brush hour."
by zicky meeren November 21, 2009
1 more definition
The time just before going out when a hairbrush is being frantically sought to groom one's hair.
The way I cope with brush hour is to go into my mum's bedroom and use her brush!
by antbee November 06, 2007