Someone who Twitters so much that it makes them an obnoxious asshole twat.
Miley is such a twitter-twatter. All she posts is irrelevant lyrics and jokes that nobody gets.
Kevin's twitter-twattering has swamped my homepage more than a few times, that assface.
light informal conversation on micro-blogging site
In amongst the twitter-twatter the occasional pearls of wisdom can be found on John's stream