A call made to a friend who has just taken a person of the other sex somewhere alone, in which you, or a group of others, knows that the person is making a mistake, and or will regret this decision in the future
Ray: Where's Tim
Kyle: He's with Melissa
Ray: Mike, where your the car keys?
Mike: I gave them to Tim
Ray: Oh God someone give him a Cock Block Call
Kyle: He's with Melissa
Ray: Mike, where your the car keys?
Mike: I gave them to Tim
Ray: Oh God someone give him a Cock Block Call
by Bode H January 28, 2008

When one interrupts a 2 person comment chain on a Facebook status update, picture, etc. Typically, the original commenters will start a nice, engaging conversation, and then the "blocker" will barge in with a totally unrelated comment, thus disturbing the flow, and consequently delaying your chances of scoring with the hot chick that's totally interested in what you're doing for the weekend...
-Dude, why are you facebook cock blocking?
-Sorry man, if I knew you were trying to bone that chick, I wouldn't have made that fart joke.
-Sorry man, if I knew you were trying to bone that chick, I wouldn't have made that fart joke.
by Sweatshop February 16, 2010

When you pink socked your girl’s ass so bad during first time anal she blocks your cock from getting anywhere near her brown button ever again.
I thought Rachel loved anal sex the other night the way she was screaming but tonight I got pink sock blocked so I’m done.
by Eaton Holgoode May 1, 2018

by Broseidon August 11, 2016

When an athlete with the purpose of guarding or defending another player or area, usually an offensive lineman in football or a basketball player on defense, lets the opposing player attack the quarterback/basket without any show of push-back by the player who's supposed to protect the person or thing in need of protection; also referred to as the "lookout defense."
*defensive lineman runs right by the offensive lineman*
Offensive lineman: LOOK OUT!
*quarterback is absolutely pummeled for the sack*
ANNOUNCER: "Offensive tackle, Edwards, with the look out block on that play..."
Offensive lineman: LOOK OUT!
*quarterback is absolutely pummeled for the sack*
ANNOUNCER: "Offensive tackle, Edwards, with the look out block on that play..."
by Brandolakes February 7, 2018

Being distracted by someone so much that you cant remember a Herbie Hancock reference you were about to say...as evidenced on an episode of the cleveland show.
Man 1:Remember that-that,damn it i forgot!
Man 2:How did you forget that fast?!
Man 1:You Herbie Hancock-blocked me!
Man 2:How did you forget that fast?!
Man 1:You Herbie Hancock-blocked me!
by Zilchoboy October 19, 2009

by gynxed May 5, 2011
