HT alias HappyTime engines. 2 stroke Chinese brand v mount engine. Name was created by Augidog (member) a few years back.
GEBE alias Golden Eagle Bike Engines. (Vender to the left of page) http://www.bikeengines.com/
I think the is a list of terms here somewhere. Can someone who remembers post the thread?
edit...found a few
You'll also want to know a few common terms around here:
MBc = MotoredBikes.com ... Happy Time (HT) = generic, Chinese 2-stroke engine from kings/dax/starfire/spooky/etc ... WOT = wide open throttle ... dino = conventional motor oil ... cager = a car or other vehicle that will flatten you & your bike upon impact.