One of the brews that must be consumed for the achievement, "Brew of the Year."
It uses the spell Teach Language to apply the buff 01001000 (Horde), allowing the player to speak in Goblin Binary. (The spell is not 100% proc upon consumption, so you may need to drink more than one bottle - always drink responsibly, by the way!) Alliance players will be taught 10000001 - Gnomish Binary.
5 minute buff duration.
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