Oook! Oook!
Dunno about the 'original' version, but in my American copies it's always three 'o's in 'oook'.
BOFH meets Pratchett... I'm just imagining... he prefers being an orangutan, because it's easier to climb around the racks... he can wield the cattle prod with his foot... and he'll kill you for calling him a 'code monkey'...
I dunno how the whole banana/lager thing would work out, but you get the picture.