(Internet slang, of an animal) The act or sound of extending the tongue to lick something, especially one's own nose, without opening the mouth fully.
2017 December 11, Jessica Boddy (for NPR), "Dogs are Doggos", in [https://web.archive.org/web/20211027182531/https://issuu.com/abbymurray1/docs/whatdoyoumeme What Do You Meme], page 21:
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