Front end to shift or scoot to the left or right

What is causing my trucks front end to shift or scoot to the left or right when I hit a bump or hole in the road? If I'm driving on the highway, and I'm taking a long looping turn and I hit a bump or hole the front end of my truck will shake and my front tires will shift or scoot the opposite way I'm turning. I'm wondering what is broken, loose, worn out that is causing my front end to do this, or is this just a dodge for me?