Simple Definition of johnny

from our Learner's Dictionary

johnny

noun

plural johnnies
US : a loose piece of clothing that is open at the back and that is worn by someone (such as a hospital patient) who is being examined, treated, etc., by a doctor

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“Johnny.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/johnny. Accessed 14 Apr. 2026.

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