Unless most of the sexy audience have speech impediments, I'm sure they said Ginglymus.

Yep, sounded like Gingivus to me too

a sexy mystery G word...? Mr Stephen Fry, where are you going with this?

Gingivus?

Going with 'gingivus'....!

Ginvivus.... as in some sort of rash..... (altho' wot's 'sexy' about that I can't tell you?!?!