Wiktionary
bleed dry
vb. 1 (context transitive English) Of a slaughtered animal, to wait until all its blood has drained off. 2 (context transitive figuratively informal English) To bleed white.
Usage examples of "bleed dry".
If Adoula takes the Throne, all the out-worlds are going to be nothing but sources of material and manpowercannon fodderhe and his cronies will bleed dry.