A cold, heartless, ghetto-ass bitch with a big ole bootie. A chick who won't let you even beat off or fuck a whore. Based on the character Nurse Ratchet from One Flew Over the Cuckoo's Nest.
When nurse ratchet won't let McMurphy fuck his prostitute girlfriend, she was being real ratchet.
by Swagnificent July 3, 2012
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Females who take pride in bullying fighting and are all about the drama, for whatever reason. This is a ratchet.
Example 1

Ratchet: Oh, look lets go bully and try to fight with that girl.

Non Ratchet girl:Girl walks away from the fight, and says "you're not worth it."

Example 2
Any woman middle age and beyond stuck living in the high school days, past. This is Ratchet.

Men can be ratchet, it has been proven as well.
by cray1 February 18, 2013
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The term ratchet, from a derogatory sense of the term, stems from drug use. A "ratchet" in slang usually refers to someone who is "ghetto", unkept, and unable to keep steady work. It's particularly derogatory towards lower class women. However it's use first comes from deep drug addiction where "ratchet" refers to someone (more often a woman apparently) that got into the grips of drug addiction from a drug dealer. We all have seen the faces of meth and what drug addiction can do to the body and face. So that's where its roots come from. Ratchet then became popularized with the musical genre Trap, a kind of instrumental electronic music with influences from "dirty south" rap. So from the recesses of drug addiction to pop culture and morphed into people who just can't take care of themselves.
Dude: "Wow do you see that prostitute over there buying crack?"
Other Dude: "Yep, ratchet."
by just_another_dude September 28, 2015
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Female version of a tool.
Can be used to describe something that looks slutty or trashy.
"Dude, don't sleep with her! She is one of the biggest ratchets!"
"I am looking really ratchet! I need to go clean up."
by VitalK February 16, 2010
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ew, i could never go with a ratchet
by Rhyaaan December 16, 2008
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A word for gun used by ghetto white kids, some Spanish kids or just white kids tryna act ghetto. This term for the word came well before the new one
Yo jimmy, pass that ratchet, imma light a nigga up

Dude, you're white, shut up
by Yuzadumbdhead October 2, 2013
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Means very bad or discussing. Can be used to express almost anything negative.
Synonymous with "wretched"

Opposite of "bougie"
Can be spelled "ratchet" or "rachet"
My car is kind of ratchet because I haven't cleaned it in months.
That's a ratchet girl. She likes to spread rumors about everyone.
Ratchet. I spiled my chocolate milk.
by wyatt52773 March 1, 2022
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