The phrase "sea shanty" carries a similar redundancy to that of the phrases "ATM machine" or "chai tea", in that the word "shanty" alone already conveys the meaning of a sea-related work song. During the 1920s, the phrase came into regular use by lay commentators, though it was not documented in use by sailors themselves, nor has it been used by knowledgeable authors on the subject such as Stan Hugill. The term "sea shanty/chantey" has become a staple of popular usage, where it helps to disambiguate the work song genre from other meanings of the word "shanty".