by fun&games August 7, 2019

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."
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."
by SaxophoneKing August 5, 2009

A person who steals your kill at key moments in any call of duty or online FPS game, and gets full credit for said kill.
by dante0220 July 26, 2010

When one can’t 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.
by estowista October 5, 2011

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.
Mike: No, Andrew was fuckin spock-blocking me again.
John: Lame.
by JohnWayne1992 February 4, 2010

I play drums and sometimes do jobs where other drummers will sit in on my kit. One night at a quiet Jazz gig, this jackass sat in and played super loud, repositioned the drums and Beat on them, denting the drum heads badly!! Rock Blocking!!!! I played with a pop band at SXSW at the Apple store in 08. We didn't have a bass played so the Crazy band leader said I shouldn't play because it would be hard for the band even though they had drums set up already, sounded like an excuse not to pay me for the show too!!!! Rock Blocking by your own band mates!!! I have played shows where someone had pissed off the sound guy and he decided to make it impossible to hear ourselves on stage. He also made us sound like shit!! Rock Blocking!!!
by Sticks Magoo February 11, 2009

by Jax_666 January 2, 2008
