What is Jump-off?
1.
a female who is avaialable anytime & anyplace for anytype of sexual encounter
...after a full night of clubbin', we went to White Castles and hooked-up with this jump-off who got it
poppin .
See
2.
A person, place or thing that is considered "off the chain" or "da bomb"
That party was the "jump-off". Boris Kodjoe is the "jump-off". This food is the "jump-off"