He's not literally "#tweeting", he's literally "TWEET"ing. I know that's outrageously pedantic, but when you start using the word "literally", that's what you open yourself up to.<p>I guess the metaphor isn't so obscure that there wouldn't be 'prior art'. Interestingly, the tweeting (calls and songs) that birds do is primarily used for "courtship" and functions such as "alarms or keeping members of a flock in contact" [1]. Pretty much sums up twitter, doesn't it?<p>[1] <a href="https://en.wikipedia.org/wiki/Bird_vocalization" rel="nofollow">https://en.wikipedia.org/wiki/Bird_vocalization</a>