When someone outside of your squad gets between you and your squad.
"Dude, you can't just push between us like that. That's squad blocking."
Preventing another driver from getting around you when you are all ready speeding and then slowing down to the speed of the next slowest car.
Jacob, "I saw that guy in my rear view mirror weaving in and out of traffic so I exhaust blocked him when he got up to me."
Bobby, "Boosh."
A term refering to when you are on chatroulette and you finally find a girl willing to show you here tits, but her roomate is in the room and wont leave.
Yeager, Ricky, and Chandler got chatroulette blocked like a motherfucker last night.
An instinctual filtration of what is spoken about among friends when adults are around.
I was talking about sex with my friends, but then my parent's came home and we had to stop. Major Adult Block!
When one fails to summon the powers to urinate and ends up standing there feeling stupid. Usually brought on when in public urinals with a lot of people around.
Mike - Oh sweet you're back, man you took your time in there.
James - I had to look convincing, I didn't end up pissing at all.
Mike - What? What happened?
James - I had pisser's block.
When you are trying to go to the bathroom and take a dump but somebody interrupts you on the way and you have to hold it in until conversation is over.
Got log blocked by the IT guy. Now I really have to go or I will download in my pants.
When you have a GF (girlfriend) and suddenly all the chicks want you. and your GF is now blocking you from scoring with them all.
Dude 1: Bro, this chick is hot
Dude 2: Yeah, too bad i'm being GF blocked