The term black-crab syndrome is an allegorical term used towards an individual or group of people who hold others back from progress and try to sabotage their own people (typically socioeconomically); the crabs-in-a-bucket syndrome is a term used to allegorically convey the idea of a person or people(a crab) confined to a similar place or status(typically socioeconomic) being sabotaged and held back from progress and success by other people(fellow crabs). The sabotage in both terms could be employed purposefully or unconsciously and for a number of reasons: jealousy, freeloading, fear of competition, etc. In the crab’s attempt to crawl out of the bucket(their current status), to explore, expand their knowledge, adaptability to other environments, and further increase their general progress in life, they are pulled backward by the other black crabs(people of the same status) or crabs who are lower in the bucket, making this level of advancement impossible. These are allegorical references used mainly by descendants of the African diaspora in reference to their own people holding them back from making progress in life.
AJ: I wouldn’t hang around them, if they see you doing better than them, or that you got the potential to do better, they’ll try to sabotage you in explicit or subtle ways. They got black-crab syndrome fr fr.
Leroy: Yup, I seen it too. They some black crabs fosho!
Leroy: Yup, I seen it too. They some black crabs fosho!
by UriYah May 21, 2022
Get the black-crab syndromemug. A sexual position, typically performend between two relatives in southern Indiana, involves corn on the cob and lots of human excrement.
I was driving through Evansville last weekend, I stopped for some lunch and caught this brother giving his sister the Indiana Crab Dangle in the rest room.
by jose99 October 12, 2006
Get the Indiana Crab Danglemug. by Battlephone October 6, 2009
Get the Bag of smashed crabsmug. 
While giving head the girl fondles the balls almost tickling them. Before he cums she bites down on the cock.
by Chauncy Peppertooth November 9, 2007
Get the alabama crab daddymug. In an argument, when a person takes the side of another person thus resulting in a 2 on 1 argument. In this situation an outside body may interrupt the argument and say, "Well it looks like we have ourselves a good ol' Alaskan Crab Trap!"
by JayPinda December 15, 2012
Get the Alaskan Crab Trapmug. A psychological impulse in which you start seeing another person before ending things with your current partner. Not cheating necessarily, the Hermit Crab Syndrome reflects the ways of the Hermit Crab, who starts moving into a new shell before leaving the old shell.
I have Hermit Crab Syndrome Guys!!! its a real thing where im always looking for something better without the risk of being alone.
by steakandshake November 5, 2011
Get the Hermit Crab Syndromemug.