1. To have sex with someone regardless of potential emotional consequences.
2. To accomplish anything that you are actively afraid of and deliberately avoiding.
(orig. 1990s) First coined by inventor Ron Popeil in reference to his "Showtime Rotisserie." Popeil extolled his audiences to "set it and forget it." While this expression originally had a specific meaning in regard to the Rotisserie, it has since taken on an alternative meaning akin to James Brown's expression "hit it and quit it" from his 1970 hit "Get Up (I Feel Like Being A) Sex Machine."
"I don't know, man, what if my girlfriend finds out?"
"Dude, with this ho, you've just got to set it and forget it."
"I'm really worried about this job interview."
"Man, you've just got to set it and forget it."
To needlessly and violently beat someone in response to a slight provocation.
(orig. 2009) According to news and police reports, R & B star Chris Brown attacked girlfriend Rihanna after she expressed outrage over a suggestive text message. She then threw his car keys out into the street, prompting a frenzied, outraged response from Brown.
"Your sister looked a bit sick at that party last night."
"You best not be talking shit about my sister or I'll Chris Brown your dumb ass."
"She said my friends were drunk and unruly so I Chris Browned the bitch."