adverb, adverb taking the 'to' particle
slowly and heavily; lumberingly; ploddingly
Describes a large, heavy, or sluggish person or animal moving in a slow, ponderous manner. Often used with verbs of movement like 歩く or 動く. Similar to のそのそ but with a heavier, more deliberate feel.
See also: のそのそ
大きなクマがのそりのそりと歩いている。
A large bear is lumbering along slowly.
彼はのそりのそりと立ち上がった。
He got up slowly and heavily.