Why? First and foremost, it's The Screech. Wikipedia kindly informs me it's a saxophone - yet another example that of how that instrument can be used to commit great wrongs. The screech is right up there with brushing paving slabs - my own personal 'fingers on blackboard' sound - as one of the most annoying things I've ever listened to.
The only thing that would make it worse it would be sticking The Screech over a lumpen lopsided piano riff. Oh wait...
There's also something about how Jump Around translated onto the UK dancefloor I never liked. The repeated direction to jump around became something mandatory, almost coercive instead of inspirational. It turned the mood hyper-masculine and the battle rhyme threats - removed from their context thousands of miles away - left a sour taste in the mouth.
So, yeah. I discard it utterly.