If something is good enough to be called the Bee's knees, then what could be called the rhinoceros's horn?

a painful experience or a delightful sexual encounter.If something is good enough to be called the Bee's knees, then what could be called the rhinoceros's horn?
That doesn't rhyme! Nothing would be called the ';Rhinoceros' Horn'; because it doesn't rhyme.If something is good enough to be called the Bee's knees, then what could be called the rhinoceros's horn?
iff the horn is a bad thing, then elevators!!! lol ;o)