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short for "with her"

also see wittim
last night i fucked witter
by Claus May 15, 2006
verb: to use Twitter.com to tell the world about your mundane life; tweet crap; over-using Twitter.
"Dat gal dem's tweeted 'bout her nail extension got mash up in the Waitrose checkout!"

"Cha, she does nuttin' but bare witter, truss."
by 0ad February 15, 2010