The act of tweeting yourself, i.e. sending yourself a tweet by sending, replying or retweeting to yourself on the twitter network.

Usually the act of "Masturtweeting" is followed by sudden realisation and an expletive, often followed by a public tweet apologising for masturtweeting in public.
@me yeah dude, I was totally wasted last night <enter>

"Oh Shiz, just sent that to myself again..."

@all sorry guys, just masturtweeted again, can't help myself
by ccwharris November 4, 2009
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The act of using Twitter solely for self-pleasure or self-aggrandisement
Trump's unhinged and fact-disregarding pronouncements over Twitter are the best example ever of masturtweeting!
by Zach's Dad January 7, 2017
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