When one partner limits their hand, the limiter says, "I'm Leaving it Up to You," just like Dale and Grace sang in 1963. A limit bid shows point count within about 3 points and usually shows shape.
Today's challenge is to decide what to do next. Will we continue bidding? Pass? Pard is leaving it up to us. By the way, limit bids are not usually forcing.
(I have to admit having no memory whatsoever of that song. Makes me wonder what I was going in 1963.)