To travel or move by helicopter; to convey by helicopter.
Back-formation from helicopter (itself from helix + -copter, Greek for wing). Verb formed by treating helicopter as a base word and adding standard verb forms.
The word 'helicopt' never really caught on in English because 'helicopter' as a verb ('we helicoptered in supplies') is more natural, but it shows how English speakers instinctively try to use nouns as verbs when they describe actions.
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