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ヌルヌル (Nurunuru) is a Japanese adverb meaning “slimy, slippery, greasy, clammy”.

Meanings

  1. adverb, adverb (to), suru verb, na-adjective, nounslimy; slippery; greasy; clammyoft. as ヌルヌル(と)する
  2. adverb, adverb (to)smoothly (of CGI movements, video streaming, etc.)