Ridiculous trend made mostly by twitter users, but it's pretty popular on Reddit too. ACAB translates to All Cops Are Bastards/Bad.
Person : What are you gonna if criminal is gonna break into your house?
Twitter/Reddit user: The uhh. umh hhhhhh... ACAB!!!!! ALL COPS ARE BASTARDS!!!!!!!!!!
Twitter/Reddit user: The uhh. umh hhhhhh... ACAB!!!!! ALL COPS ARE BASTARDS!!!!!!!!!!
by Resterez October 29, 2020
Get the ACABmug. An acronym that stands for "All Cops Are Bastards." ACAB does NOT mean that all cops are bad people. A good person could be a cop, it's just that the system is corrupt so as soon as that good person puts on the uniform, they are representing a corrupt system which is why ACAB is a thing.
Girl 1: Anyways, ACAB
Girl 2: But my dad is a cop!!
Girl 1: So..?
Girl 2: My dad is a good person though!
Girl 1: I never sai he wasn't... I just said that all cops are bastards...
Girl 2: My dad is not a bastard !!!!!!!!
Girl 1: No he isn't. But he works for and represents a corrupt system. I bet your dad is a great person, but as soon as he puts on that police uniform, I lose respect for him.
Girl 2: ohhh that makes sense! ACAB!!
Girl 2: But my dad is a cop!!
Girl 1: So..?
Girl 2: My dad is a good person though!
Girl 1: I never sai he wasn't... I just said that all cops are bastards...
Girl 2: My dad is not a bastard !!!!!!!!
Girl 1: No he isn't. But he works for and represents a corrupt system. I bet your dad is a great person, but as soon as he puts on that police uniform, I lose respect for him.
Girl 2: ohhh that makes sense! ACAB!!
by ACAB, baby! September 7, 2020
Get the ACABmug. by wumper November 4, 2020
Get the ACABmug. An acronym that stands for A Crazy Ass Bitch, try to avoid people that use this acronym especially if they have it in their Instagram bios underneath their gender pronouns. These people will attack you if you don’t share the same opinion and are overly sensitive. Most people who use ACAB are typically young white women.
Johnny: Yo some chick just dm’ed me and asked me to let her tickle her pickle.
Jordie: What her bio look like?
Johnny: It has ACAB in it.
Jordie: Uh ah, block her her ass ASAP!
Jordie: What her bio look like?
Johnny: It has ACAB in it.
Jordie: Uh ah, block her her ass ASAP!
by Frankenstein’s Dongle January 4, 2021
Get the ACABmug. by symounde December 7, 2020
Get the ACABmug. 
Get the ACABmug. 