Adjective used to describe music with a good beat. Root word: juke, as in "juke box."
This song is so jukey. It makes me want to dance.
Fumble, goof, mess-up. Used in a situation where someone has been defeated, made a mistake, or otherwise pwned.
Possible (North American) football origin, used in the Santa Barbara, California area.
That guy just tripped over his own shoelaces! Oh, jukey!