I have a different meaning... perhaps...
To me, a dweeb plane is one that out-everythings everything. An La7 or Spit 8 or 16 can outturn, out climb, and out run almost everything in the game. There are a couple gleaming planes that can out-do these planes in one or two area's (109K) but they always have strengths to fall back on. 4 Hispano birds are annoying, but they arent quite dweeb planes IMO>