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describes someone who has a state of alertness that usually corresponds to consumption of coffee or other caffeinated beverages. an over-coffeinated individual would be overly alert (almost paranoid), edgy, generally intolerant of others and reacts quickly without proper control, possibly due to too much caffeine intake. an under-coffeinated individual would be slow to react and understand things, as if they were stoned or sleep deprived (or more likely in need of coffeination to perk them up).
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