Simple past tense and past participle of earwig.(verb)
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Use "earwigged" in a sentence
"And according to a costuming chap I once earwigged on, Martin Shaw rolls up his sleeves in every production because he believes his forearms to be particularly attractive."
"Uliba went on sobbing, and Masteeat frowned at me as though becoming aware that the family squabble was being earwigged by this foreigner."
"'It was hardly undercover/he went on. 1 just went to a few games, drank in a few pubs and earwigged a few conversations."