But the pedestrian isn't supposed to be on the road at all! The usage of 'tie' is pretty confusing!

Ah, the 'grym' thing is just the trend of generations re-inventing words. As soons as parents started to use "cool", kids needed a new one!! They also use "sjukt" (adverb of "sick") as general emphasis. So something can be "sjukt grym"

'Hoppeligen' is pretty logic, sound like just another dialectual twist to me!