(1) (Adj.) a great deal of fun
(2) (Adj.) very attractive

Out of control, wild fun. Just like when your pitbull gets off the chain in the back yard and tears through the neighborhood.

Da bomb, really good, deliteful.

Something that is fantastic, awesome, and especially extreme can be said to be "off the chain".

wild, raucous, or out of control. Originated from the onset of a dogfight, when the dogs are let "off the chain" and the event begins.

Starting back in the early 1800's when slavery in America was prevalent. When a nigger was or African American was on good behavior the slave master would unshackle the slave so they had a little freedom. This was widely accpeted as a "good thing" or "cutting loose" when the slave was let "off the chain" and now today we have many niggers saying thats off the chain and now you know where it comes from.

1. (adj) crazy, uncontrollable, nuts, insane in the membrane