Dip Stick Tube Loose........

The tubes are an interference fit and you would have to find something to swell it from the inside. Heating it with a propane torch and a blast of high pressure air might do the trick ( cap the dipstick end temporarily ) or an expanding wire type reamer if you can find one. You could wait till you next oil change, clean the block and tube with ether and JB Quick Weld it and then drain the oil but that tube won't come back out in one piece in the future!