Wiktionary
supermale
n. A male with XYY syndrome.
Wikipedia
Supermale (novel)
The Supermale is a 1902 novel by the French writer Alfred Jarry. Its irreverent and darkly humorous storyline involves elements of science fiction. It features a race between a train and a team of cyclists fuelled by " perpetual-motion food", and the exploits of a "supermale" capable of prodigious feats of endurance and sexual athleticism. It was Jarry's last novel.
Translated into English by Barbara Wright in 1968.
Usage examples of "supermale".
In the case of the elephant seals, a policy of having three times as many daughters as sons, but of making each son a supermale by investing three times as much food and other resources in him, could be stable.