The act of one male hanging around a female he likes to deter other males from talking to her.
I really like Janet but that guy is totally cock blocking her.
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A game played by marching bands. It is like the game Simon Says expect it is played with commands such as "Right-Face" or "One set of eight forward" but as the game progresses more complicated commands will be added to elimiate more skilled players. A player is out if he does not follow a command properly. The winner is crowned when s/he is the only one left.
After the band has formed a block they are prepared to play Concentration Block.
Drum Major (to band) : "Right-Face-Move!"
Band executes the move
Drum Major (to student who did not properly move) : "(Insert Name), you're out you turned left."
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When you prevent a freind from hooking up with a tranny, carrier, or someone too ugly to forgive. Referring to the shock on the dreaded "morning after"
Dude we totallt had to shock block you last night at the club. That girl had an adam's apple and huge palms.
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When your friend- who looks strikingly like Spock from Star Trek- engages in behavior similar to cock-blocking. Often in brutally failed attempts to hook up with your girlfriend, or prevent you from doing so.
John: Dude, did you get any action last night?
Mike: No, Andrew was fuckin spock-blocking me again.
John: Lame.
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When one canβt dock a bikeshare bike because all the spaces are full in the station where you want to stop. When a bikeshare biker takes the last dock in a station preventing you from docking.
I was on time for work until some asshole dock blocked me and had bike three blocks to the next station.
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Boner-blocked
Original definition circa 1987
When a really hot chick is standing next to you in a year book picture and you want that hard-on captured for all eternity for her to always remember you by, and the person in front of you with a full head of hair blocks the massive erection, boner block.
Another derivation: Anytime you are posing for picture with a really hot chick, and the massive erection is obscured from the final photo, but there is at least two dirty grins on their faces
Billy: Gee I hope this massive erection I have right now makes the school yearbook, and this girl's douche bag boyfriend's see where her hands is.
Tom:Dude, how could anyone possible miss it?
Two months later.
Tom: Billy you totally gotboner-blocked, Lisa's big head of hair totally blocked the shot, but not everybody's grins.
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The distance of a normal city block multiplied by 10.
A mall is two Al-Blocks from my house.
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