A euphemism for masturbation. Dollars equate to a "wad of cash" or simply, a "wad". And having a fistful of such is to have a firm grip on your "wad", or to be in the act of resurrecting the one-eyed yogurt slinger.
After hours of watching erotic film, Terrence got a fistful of man dollars and then slipped into a sweet sleep.
by C.M.E. Barnard June 20, 2007