@Alba

Oops, might be a mumsnet term. Jemand der einen thread started um eine ganz bestimmte Reaktion zu bekommen. Hier die Definition von Iona (einer der MN HQ Damen)
"There's no hard and fast definition for a GF, but essentially it's someone who perhaps isn't exactly a troll but does like to post in order to stir the pot a little. Perhaps the difference between the two is that a troll is usually completely non-genuine and making shit up or posting deliberately to cause upset, where as a GF might just be a GF in real life (and therefore no different on the boards!) - we all know one, don't we? "