So... That wasn't slang for actual Gnomes? But, something that's like a softer derivative of something else, which is also a less surgery derivative than the American counterpart? AND I have tried the softer alternative before without even knowing it's name beforehand?
http://d22zlbw5ff7yk5.cloudfront.net/images/stash-1-17265057d3b7143ad.gif
(Also, I don't like coffee...)