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English definition of “chug”

chug

verb [I always + adv/prep] (MAKE SOUND)   /tʃʌɡ/ (-gg-)
to make the sound of an engine or motor, or to move making this sound: The train chugged up the hill. To chug also means to move steadily, like a little train: Yeah, my life is chugging right along, thanks. chug    /tʃʌɡ/ noun [C] We heard the chug of the boat’s engine in the distance.
(Definition of chug verb (MAKE SOUND) from the Cambridge Academic Content Dictionary © Cambridge University Press)
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