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louser

Irish slang for a mean, contemptible, or thoroughly unpleasant person.

ˈlaʊsɚ146 viewsLast reviewed Jun 29, 2026+ Add a definition
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#1·Apr 28, 2026

Irish slang for a mean, contemptible, or thoroughly unpleasant person. A louser is someone who lets others down, cheats, or acts selfishly — the kind of person who'd steal your last euro and then blame you for it. Widely used across Ireland as a casual but pointed insult, it carries real sting without crossing into outright profanity. Think of a louser as the guy who never buys a round at the pub but always drinks yours.

Don't trust him with the float — he's a complete louser and everyone on the street knows it.
Origin: Likely derived from 'louse', the parasitic insect, extended figuratively to describe a person who feeds off others. Common in Irish English for generations. Editorial expansion authored on Slangora.
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#2·Apr 27, 2026

(Ireland, slang) A mean or contemptible person.

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