/ ˈblɪŋkɪŋ; NAmE / adjective , adverb
( BrE , old-fashioned , informal ) a mild swear word that some people use when they are annoyed, to avoid saying 'bloody' :
Shut the blinking door!
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WORD ORIGIN
mid 16th cent.: from blink + -ing ; used as a euphemism for bloody (I).