by Chrisa Mark January 4, 2008

A creature of J-Quest origin. It has a cube head, a cat-like body and tail, and a large crab claw. They come after small children at night and people are not sure if they live under the water or on land.
1. Dude, J-Quest, that block crab cat is intense.
2. Can I paint a giant block crab cat on the mural?
2. Can I paint a giant block crab cat on the mural?
by Laurnei March 18, 2007

When a member in the party decides to join in on the game with the group when nobody in the group wants them to. Ultimately the group decides against playing the said game.
The other day, Ramzfan914 decided to be a gamers cock block and tried to play the same game with us. We decided to switch to a game that Ramzfan914 didn't have.
by KuraudoSutoraifu February 26, 2011

H&R Block is one of the world's largest tax services providers, utilizing more than 100,000 highly trained tax professionals and having prepared more than 550 million tax returns worldwide since 1955.
by ZigZagMan January 26, 2011

At erikas after prom party Ashley and Phil wanted to fuck. Their friend kaitlyn didnt want them to and started to cock block phil. Then drunk Sipes came up from the basement and pulled kaitlyn away from phil and ashley so they can get to it. Sipes was the cock block blocker hookin phil up with some pussy that night.
by Sipes May 17, 2005

I was hitting on this fine looking nurse at the old folks home when my grandma told her about me being unemployed.
me: "nice Grandfather cock block g-ma!"
G-ma: "shut up and drink your ovaltine"
me: "nice Grandfather cock block g-ma!"
G-ma: "shut up and drink your ovaltine"
by silvershamus February 22, 2011

A) The Lucky Cinder-Block is a fictitious object carried by backpackers and students. It represents any extremely heavy object carried for no particular reason.
B) Any useless, weighty, or otherwise pointless object occupying an inordinate amount of space in a backpack.
B) Any useless, weighty, or otherwise pointless object occupying an inordinate amount of space in a backpack.
Steve: Hey Joe, Why is your backpack so heavy?
Joe: I don't know.
Steve: Dude, you brought your lucky cinder-block along didn't you?
Joe: I don't know.
Steve: Dude, you brought your lucky cinder-block along didn't you?
by Andrew Narveson May 22, 2008
