Dana White: My Family Keeps Asking for Money After $4 Billion Deal!

It's a good problem to have ... but Dana White says family members are coming out of the woodwork with their hands out after the UFC sold for $4 BILLION ... so he's ignoring their calls!

White was on 'Kimmel' Thursday night -- and was asked how his life has changed now that he's insanely rich (Jimmy estimates he made $360 mil off the deal).

We're guessing Dana was joking about the family -- but says he had a real Howard Hughes moment and locked himself in a hotel room after the deal closed.