noun
internet troll; online troublemaker
Refers to a person who posts inflammatory or disruptive messages online. Common in net slang.
掲示板が荒らしに荒らされて、まともな会話ができなくなった。
The forum was overrun by trolls, and normal conversation became impossible.
あの荒らしはすぐにアカウント停止になった。
That troll got their account suspended right away.
noun, used as a suffix
causing havoc; vandalism; trolling
Used as a suffix to describe acts of disruption, vandalism, or trolling in a specific context. Often attached to a place or target.
ネット荒らしは掲示板の運営者にとって大きな悩みだ。
Online vandalism is a major headache for forum administrators.
彼は学校荒らしで捕まった。
He was caught for vandalizing the school.
noun, used as a suffix
robbery; burglary; thief; robber
Suffix indicating a crime or criminal targeting a specific place or thing. Can refer to the act or the person, depending on context. Often used in compounds like アパート荒らし (apartment burglar/burglary).
See also: アパート荒らし (アパートあらし)
最近、この地域で空き巣荒らしが多発している。
Recently, there have been many burglaries in this area.
アパート荒らしが捕まったと聞いて安心した。
I was relieved to hear that the apartment burglar was caught.
荒らす is the transitive verb meaning 'to lay waste' or 'to vandalize'. 荒らし is the noun form derived from it, often used as a suffix.
嵐 means 'storm' and is a homophone. 荒らし is a different word with a different kanji, related to causing disruption or damage.
Derived from the verb 荒らす (to lay waste, to vandalize), with the noun-forming suffix 〜し. The internet slang sense is an extension of the 'causing havoc' meaning.