caffeinate

caffeine +‎ -ate.

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caffeinate (third-person singular simple present caffeinates, present participle caffeinating, simple past and past participle caffeinated)

1. (transitive) To add caffeine to.
2. (intransitive, slang) To drink caffeinated beverages in order to increase one's energy or wakefulness or to enhance physical or mental performance.
   • 2014, Marc Guggenheim, Overwatch:

     After he's caffeinated, he makes the now familiar morning commute down George Washington Memorial Parkway to Langley.

3. (transitive, slang) To inject tension into (a situation, etc.) for one's own amusement; to stir things up.
4. (transitive, slang) To provoke (a person) for one's own amusement.

• decaffeinate

• hydrate

• caffeinator