The act of a police officer, arriving at an incident, parking in a manner that prevents vehicles from entering or leaving parking spots.
Example 1:

(Setting: Apartment complex in a rough part of town.)

Boyfriend: Hey honey, it's about time for our zoo date you've been eagerly anticipating for months now. We'd better get a move on it.

Girlfriend: Good thinking, sweetie.

(couple exits apartment)

Girlfriend: Oh, honey, look at all the pretty lights! The ghetto bird is up again and the police are approaching our neighbor's door behind a bunker shield. Are they carrying a shotgun?

Boyfriend: Ugh. Worse yet, they've inconsiderately parked behind my vehicle and copblocked us in! And it's probably not a good time to ask them to move their patrol cars. Guess it'll be another Netflix night.

Example 2:

Dispatcher: We have a Priority One hot call at the hospital. A buck naked, homicidal man is throwing stones at a doctor in the northeast lot.

Rookie: Copy. Going Code 3.

Oldtimer: Hey Partner, I see the guy! Stop the car!

(Rookie begins pulling into a parking spot in the northeast lot.)

Oldtimer: WTF. Where's your tactical driving skills?!

Rookie: I didn't want to inconvenience patrons who may need to leave.

Oldtimer: You've got a lot to learn, Rookie. We're Da Police. It's okay to copblock!
by Copper101 March 11, 2011
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when your at a party and your about to get some booty but cops come and break up the party resulting everybody running and not getting any action.
rob: what happened with you and janet last night?

sean: i got fucking copblocked!!

rob: what?

sean: i had the condom in my pocket and we were just starting to make out and the cops came and broke up the party!!!!

rob: haha wow that sucks...i got booty though.
by miguel fernando August 22, 2008
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Wen u c sum1 u want 2 holla at and sum1 came up and start talkin shit bout dat person just str8 up doggin dem or dey could b sayin dat shit cuz dey want him/her 4 dem selves.
Damn I almost had Jamaal numba but dat bitch Ashley copblock talkin shit.
by Lin A.K.A Skittles November 10, 2006
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The act of impeding or preventing a police officer from doing his or her job. Common examples include flashing headlights to alert other drivers that a cop is waiting up ahead, asking a cop inane questions while they are in the process of giving someone else a ticket, or wasting an officer's time in any way, shape, or form possible.

May also refer to the game of Copblocking, where players "rat out" a cop's speed trap to would be speeders, preventing the cop from giving any tickets.
So I totally slowed down right before we made the turn and missed that ticket -- fucking copblocked that mother fucker!

Yesterday Jon and I went copblocking for a couple of hours. Shut down this one po-po for a good thirty minutes, bitch didn't write a single ticket.
by DPSkitty March 20, 2010
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blocking another person from trying to holla at someone
man chill with all dat son, you be copblocking like sh!t
by misz_capricorn October 24, 2007
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Cop Block (or copblock) ©® is a thing which blocks your vision, as like the thing which undermines a criminal's vision is a cop; and also, an individual, group or other person, place, thing, event or idea which runs interference with police, while one or more gets away.
The PD cop block (or copblock) everything I do so I have to send a cop block (or copblock) to run interference.
by Howard W. Moore, 3rd August 27, 2021
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