You can't just call it a clunker simply because it's a slightly old MTB put together with random bits, or in your case Ed, a brand new bike.
Clunkers were made from post war beach cruisers and news boy bikes with slack angles.They stripped off all the fairings, used motorbike brake levers and bars, welded bits on, bodged bits, etc and they weighed a hell of a lot more.
You bought your whole bike ready built online...hardly qualifies as a 'clunker'.
It's like when you were calling any bike with a bit of rust and some skate stickers on it a 'Rat bike'.
Ha ha, you got called a clunker fakenger.