There are people who get off on hanging themselves from the back by meathooks, so it can be done. But hanging yourself from a wide area with a lot of tissue, like your back, is way different from hanging yourself from your genitals. When hung from the back the balance, strain and weight is evened out and multiple hooks are used and it can't be done for long because the flesh does rip and stretch.
I once saw a documentary about this lol. Never thought it was information that would come in handy. A BDSM couple got married while suspended from meathooks. freaky shit.