Top Definition
To join the millions of people on twitter and witness what they tweet.
Shaq posted a new pic of him. Go twitness it.

I knew the chargers were gonna pick him. I twitnessed it.

I twitness what john mayers every move is

Did you twitness shawn merrimans rant?

I'm a witness to lebron but a twitness to justin
by poolboiz August 06, 2009

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