by Peter March 20, 2004

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.
by nonsense234 June 29, 2008

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
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.
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.
by drswagman October 29, 2011

When someone is sitting in class so that they block your view of the clock. You can't check the time without leaning over conspicuously and the teacher noticing
Bryn: Dude that guy was totally clock blocking me, Mr. Richards noticed me looking at the time and kept us for another five minutes.
Oliver: Man I hate clock blockers
Oliver: Man I hate clock blockers
by brynster48 January 15, 2010

An action hindering another person's progress. Commonly referenced as a sexually related progress but not exclusively related to just sexual affairs. From the European native art of cock-blocking. "Kalk-block"
My broski really cock-blocked me today by not calling me back in due time. Matt is a real cock-block, he didn't give me a phone number to a potential customer in time! Richards can be a real cock-block at times, he never includes me in his important stories! My brosef was not answering my text messages--he was acting like a real cock-blocking son of a bitch!
by Brosef Bryan March 28, 2010

The act of one woman ruining another woman's chances for achieving something. The feminine version of cock blocking.
by Selfish Mom September 26, 2009

When someone uses high privacy settings on Facebook so that you can't see any of their pictures unless you friend them.
Person 1: "Did you hear John got a new girlfriend?"
Person 2: "No way! I'm going to go stalk her Facebook right now."
Person 1: "You can't see anything; I've already tried."
Person 2: "What a stalk blocker."
Person 2: "No way! I'm going to go stalk her Facebook right now."
Person 1: "You can't see anything; I've already tried."
Person 2: "What a stalk blocker."
by yerika February 24, 2011
