Unscribe
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v. A popular misspelling of the word [unsubscribe], often found in [mailing lists] and groups, used by folks who seem to be clueless about the word unsubscribe and are overwhelmed by the (e)mails that that they get in their [mailboxes]. Cancel a subscription to a mailing list, publication or service, especially online.
Unscribe meaning & definition 1 of Unscribe.