Jisho

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Noun
1. (Internet) troll; disturber
  • ひと一つ
  • ミス
  • 荒らし
  • まちが間違えられて
  • たた叩かれて
  • しまう
Just one slip and you'll be mistaken for a troll and flamed.
Noun, used as a suffix
2. raising havoc; laying waste; trolling; vandalism
Noun, used as a suffix
3. robbery; holdupSee also アパート荒らし アパートあらし
Noun, used as a suffix
4. robber; thief
Wikipedia definition
5. Troll (Internet)In Internet slang, a troll is someone who posts inflammatory, extraneous, or off-topic messages in an online community, such as an online discussion forum, chat room, or blog, with the primary intent of provoking readers into an emotional response or of otherwise disrupting normal on-topic discussion. The noun troll may refer to the provocative message itself, as in: "That was an excellent troll you posted.
Read “Troll (Internet)” on English Wikipedia
Read “荒らし” on Japanese Wikipedia
Read “Troll (Internet)” on DBpedia

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