Third person singular or plural of chug; makes repeated sharp sounds like an engine, or drinks something in large gulps.
From 'chug,' an onomatopoetic word originating in the 19th century that mimics the sound of steam engines and pumping actions.
One word, two completely different meanings—both are actually connected by sound: whether it's the literal chugging of a train or the metaphorical chugging of a drink, the action creates that distinctive sound!
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