Well, we should first clarify whether the OP means "wort opening with a name" or "worst name for an opening".
I hijack the thread to ask: why does chess.com say that 1.g4 e6 2.f3 is the Grob opening (see e.g. here) and 1.g4 e5 2.f3 is the Barne's opening (see e.g. here)? It's exactly the same moves for White! (and normally Barne's opening is 1.f3 unless I err -- but why do they "transpose" the second and not the first game, all other things being equal ?!)
Bongcloud by far