—n. 1. swing music or early jazz. 2. the jargon associated with swing music and early jazz. 3. Slang.deceptive, exaggerated, or meaningless talk: Don't give me any of that jive!
—v.i. 1. to play jive. 2. to dance to jive; jitterbug. 3. Slang.to engage in kidding, teasing, or exaggeration.
—v.t. Slang.to tease; fool; kid: Stop jiving me!
—adj. Slang.insincere, pretentious, or deceptive.
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I'd also add the definition "corny, no good, untrustworthy, cheap, worthless, trash".
This is usually what "jive" means now when I hear it or when I use it. A person is "jive" because he or she is "no good". A "jive" product is one that is cheap, unlikely to work well, and/or breaks apart after a short amount of use. A movie is "jive" because it is corny, is cheaply made and/or badly acted.
These uses of the word "jive" probably come from the "meaningless talk" definition of that word and/or the "insincere, pretentious, or deceptive" definition of that word.
As to how that definition got here from there-wel, if people don't know the meaning of the slang another person is using, then they could believe that person is talking nonsense. And if a person is thought to purposely talk nonsense in order to gain some advantage over another person, then the "deceptive" definition of jive would kick in. And cheap things are usually worthless. So there ya go.
Another Black vernacular phrase that is used instead of saying that a person is talkin jive is that they are "talkin trash". That negative meaning is quite a distance away from the being hip and being cool meaning of "jive talk". But it seems to me that the definition of jive talk (being so hip that you know the latest slang and can appropriately speak it) has long since been retired by Black folks. In other words, a person can be considered jive (meaning corny) if they still use the word "jive" to mean "the latest slang words & phrases".
And very few people I know associate the word "jive" with the musical genre Jazz. But then again, not that many people I know are "in to" Jazz...