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1.
Hooking up with someone who you've spoken less than 140 words to.
Sarah: How did you meet Rafael?

Jenn: At some random friend-of-a-friends' party. I'm not sure even how we ended up in bed. We pretty much met over brunch the next morning.

Sarah: Sounds like a twitter bang!
by santa clothes May 02, 2009
 
2.
–verb (used with object)
1. To pursue a flirtatious, almost coital relationship online through Twitter.
2. To simulate sex through 140 character strings or less, posted on Twitter. An evolution of cybersex or phone sex
What started innocuously as a girl following the tweets of an indie rock icon became a furious, wanton twitterbanging.
by vertigo April 22, 2009