らし
arashi

Noun

1. (Internet) troll; disturber

ひとつのミスでらしと間違まちがえられて、叩たたかれてしまう。
hitotsuno misude arashito machigaerarete tatakarete shimau.
Just one slip and you'll be mistaken for a troll and flamed.
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2. raising havoc; laying waste; trolling; vandalism

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3. robbery; holdup

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4. robber; thief