Someone who tests others' sobriety — either literally with a device or figuratively, the person at the party who judges how wasted everyone is and decides who's too far gone. Can be used affectionately or as a mild diss for the buzzkill.
Don't hand him the keys, the alcotester already failed you twice.
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Viral internet speak — memes, ratios, main-character moments, and the algospeak of every platform from Twitter to Reddit to TikTok comment sections.
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