The Gerbins were a group of Belgian exiles who sought refuge in Germany in the early 1920's. They formed a few small, tight knit communities in the Koln/Bonn region of North Eastern Germany, not too far from the Belgian border. Being such a small group, they had little cultural impact on the region, however they did have a minor culinary contribution which I'm actually surprised to hear mention of outside of Germany. This dish is in fact the Belgian derivative of the well known German Pancake. From what I've been able to glean from century old recipe books passed down through my family for generations, the main difference was the batter, not the preparation. While the specifics are hotly contested, it seems that the consensus was the use of Belgian brewing yeast in the batter, creating very thick and yeasty pancakes that were so light that they were not dense and heavy like their German counterparts.Wow, I don't know how he or she knows this, but our Anonymous is a veritable wellspring of knowledge!
By way of another possible answer to this problem, KR links me to this Wikipedia article and adds, "It's just a twisted way of saying 'German pancakes.'"
The good news is we have possible answers. The bad news is... I was really hoping for something a little juicier. Perhaps we could believe that the Gerbins are a race of Belgian, inbred, half-pig, half-human gentle giants in hiding, still hunted to this day by the CDC because they're believed to have concocted the cure for the common cold out of midwifery and local herbs.
Either way, Gerbin' pancakes are a real thing. Go out and try some today! The more you know.
Those look gerbin' delicious.