viral (adj.)youdaoicibaDictYouDict
"of the nature of, or caused by, a virus," 1944, see virus + -al (1). Sense of "become suddenly widely popular through Internet sharing" is attested by 1999, originally in reference to marketing and based on the similarity of the effect to the spread of a computer virus. Related: Virally.
wonk (n.)youdaoicibaDictYouDict
"overly studious person," 1962, earlier "effeminate male" (1954), American English student slang. Perhaps a shortening of British slang wonky "shaky, unreliable," or a variant of British slang wanker "masturbator." It seemed to rise into currency as a synonym for nerd late 1980s from Ivy League slang and was widely popularized 1993 during the presidency of Bill Clinton. Tom Wolfe (1988) described it as "an Eastern prep-school term referring to all those who do not have the 'honk' voice, i.e., all who are non-aristocratic."