There are so many eunichs on this show, but let’s just say Theon Greyjoy, who I think looks exactly like Paul Felder, they never said they just cut off his balls, but they mention his cock, same with Varys.
I think you are a Eunuch either way, no balls being the common denominator.
Theon Greyjoy is said to have only been castrated by Ramsay Bolton, but we see his cock cut off by the whores when he'd been captured. In the following scene Ramsay was sitting in front of Theon eating a sausage on a plate.
Varys told Tyrion that he also had the full chop.
Fuck knows what the Unsullied slaves are in the Dragon Queen's army though. Judging by his woman's reaction and the fact he quickly resorted to going down on her, I'm guessing there's not much going on down there.