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Unit Confusion is the closest thing I could find to that trope, so I think it might be a good idea to either go to the Trope Repair Shop
and suggest expanding Unit Confusion or to just YKTTW confusing English and metric units.
I am not sure about this, but I would guess that the former solution would make more sense than the latter since I doubt there are many examples of using units haphazardly like that. I could be wrong though.
"irhgT nm0w tehre might b ea lotof th1nmgs i dont udarstannd, ubt oim ujst goinjg to keepfollowing this pazth i belieove iN !!!!!1 d
What's the trope for the mixture of units? Like in the original Star Trek where they sometimes use English units and sometimes metric (sometimes in the same conversation). Or that My Little Pony episode where Pinkie Pie is giving Rainbow Dash instructions on positioning a cloud and she randomly jumps back and forth between inches and centimeters. It's not Unit Confusion because the units aren't actually being confused, just employed haphazardly.