noun

• (derogatory, ethnic slur) A person of Native American descent.
• (music) (Especially in metal) A palm muted note on a distorted electric guitar.

verb

• (intransitive) To make dull explosive sounds.
• (intransitive) To move or travel whilst making such sounds.
  "We were chugging along a back road when the engine cut out."
• (intransitive, by extension) To move or travel at a steady, although not especially fast, pace.
  "Outside, beyond the sun-baked station yard, a rice mill chugged away in the distance, and sweating coolies unloaded bags of rice from creaking bullock carts."
• (transitive, colloquial) To drink a large amount (especially of beer) in a single action/without breathing; to chugalug. Usually chanted at the person who is drinking.
  "Chug! Chug! Chug!"

verb

• (transitive, UK slang, derogatory) To solicit charitable donations on the street, particularly in a persistent manner.
  "I got chugged in the town centre today."