Answer: MEME

AnswerCrossword Clue
MEMEInternet sensation
MEMEVolunteer's cry
MEMEHand-waver's cry, sometimes
MEMESocial media phenomenon
memecultural item that is transmitted by repetition in a manner analogous to the biological transmission of genes
memea practice or belief passed on other than by genes
memean idea, behavior, style, or usage that spreads from person to person within a culture
MEMEBit of viral web content
MEMEMuch-reshared post on social media
MEMEIdea that spreads popularly and widely
MEME"Who wants ice cream?" response
MEMESomething that goes viral
MEMEOne gets shared a lot
MEMEJoke that goes viral on the internet
MEMEFast-spreading cultural idea
MEMEFirst-grader's attention-getter
MEMEHand-raiser's cry, in grade school
MEMECultural equivalent of a gene
MEMEFirst-grader's attention-getting phrase
MEMEGreedy cry
MEMEPiano-playing cat, once
MEMESame, in Strasbourg
MEMESame, by the Seine
MEMERepeated cry while waving a hand
MEMERepetitive cry while waving a hand
MEMEInternet ... (viral phenomenon)
MEMEInternet ...
MEMEIdea that may spread via the Internet
MEMEViral phenomenon on the Web
MEMELolcats, e.g.
MEMEWords shouted with a raised hand
MEMETwitter trending topic, maybe
MEMEMany a Facebook repost
MEMEPassing web fancy
MEMERepeatedly reposted item
MEMESomething trending online
MEMEIce Bucket Challenge, e.g.
MEMEDouble Rainbow, e.g.
MEMEEnthusiastic volunteer's cry
MEMEFrequently shared thing