cock block

A move executed by a female during sex to prevent full penetration because the male's cock is too big. The move is executed in almost any sexual position, by the female bringing her arms up, putting her hands on the males waist or thighs and pushing away with her fingers, resulting in the cock reversing its penetration and also preventing any further full thrusts by the male to achieve maximum depth.

"Sylvia had been talking big game about wanting a man with a big cock, but once I started beat'n that pussy up...the cock block came up real quick!"

cock block by Mustafaa Abdallah December 24, 2008

Preemptive cock-block 

The act of preventing interaction between one or more females with one or more men prior to any communication between the two groups, thereby negating the need to cock-block them later on, after they have started making moves on the women.

A: Hey man, how were those girls that Johnny showed up with?
B: I don't know, he sat down at a different table, so I couldn't talk to any of them.
A: Ah, dude, that was like a preemptive cock-block.

Preemptive cock-block by Swill128 June 21, 2009

cock block

when a male species is doing physical "activity" with a female species .
then the male species friend comes in the room , making them stop their "activities"

then the male friend hits on the female and they do some "activity" making the original male very sad . :(

Fred and Sarah were having some "fun" downstairs in Sarah's bedroom . then Albert decides to come and cock block Fred . Then Sarah leaves with Albert to have "fun" in Albert's mustang . Fred is now sad .

cock block by veryboredrightnow August 27, 2010

Cock Block

to purpously be a douchebag and interupt a moment.

During science class my teacher cock blocked John and me while we were making out...

Cock Block by for borjyy againn September 30, 2010

cock block

The act of preventing one from having sexual relations, usually by a jealous friend

Person 1: Did you end up getting with that chick last night?
Person 2: No... you cock blocked me and told her I had herpes remember...
Person 1: Bahahaha
Person 2: You're a dick

cock block by split_allen1 October 13, 2010

cock block

to block a person's racket during a game of badminton

when playing badminton, a racket is blocked:

Casey: Why the hell did you just cock block me?

cock block by bakerbabexx November 3, 2010

cock block

a kidney stone a literal blocking of fluids exiting the cock

Joe had a major cock block on his hands.

cock block by mriz October 16, 2011