Define Cop Knock Meaning

Cop Knock
When someone knocks so hard that you think it's the cops.

You scared the crap out of me! Why'd you have to cop knock? I was smoking weed man and I thought it was the cops and I totally freaked out.
By Gretna
Cop Knock
A loud, startling, authoritative knock usually used by law enforcement to announce their presence.

Hey easy with the cop knock Fred, my kid is trying to sleep.
By Clementine
Cop Knock
Extremely hard, loud, repetitive pounding on an outside door or window to show authority to those inside and get them to open the door.

I know Daryl is in there sleeping so I'm gonna Cop Knock and wake him up.
By Emmi