Bottom Up Turkish Get-Up
In addition to the benefits gained from the ordinary, or easier, TGU, this one really fries the forearms due to the grip required to maintain the KB in the upside-down position. It's also wise to start with a lower weight and be
very attentive as to what the KB is doing and how your grip feels throughout the movement because if grip gives out the KB
will drop.
I should add that the TGU is also a "get up" so there is no requirement to reverse the movement back to the prone position, but many do and it appears to be a standard practice.