once bitten twice shy
once bitten twice shy = once burned twice shy
a bad experience makes you wary of the same thing happening again
This expression dates from the late 19th century. A variant common in the USA is once burned twice shy.
Related Idioms and Phrases :
once a fool always a fool
a person cannot change their fundamental nature
1993 - Margaret Atwood - The Robber Bride - She was once a Catholic and once a Catholic, always a Catholic…according to her mother.
once and for all = once for all
now and for the last time
finally
once and future
denoting someone or something that is eternal, enduring or constant
This expression comes from T. H. White's The Once and Future King (1958) - a series of novels about the Arthurian legends.
once in a while = every once in a while
from time to time
occasionally
1989 - Annie Dillard - The Writing Life - Every once in a while Rahm saw a peephole in the clouds and buzzed over for a look.
once bitten twice shy :
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