Possible Clues:

• Cut down on the jumping; it's going on and on!
• Vast, having no limit
• Having no limit, extensive
• Tremendous description of a kangaroo with superglued hind legs?
• Seemingly without limit
• Infinite love in large amounts ending in happiness
• Didn't tie up as much when full of such energy
• Infinite spring gone then?
• Don't have so many hops to such an unlimited extent