Verb. Sending a tweet or tweeting @someone more famous than yourself in hopes that they will re-tweet and make you famous for a few minutes in the twitter-verse. Opposite of 'down tweet' or "down tweeting".
I up tweeted @brianwilliams but he ignored it.
by Hbro May 29, 2012
Get the up tweet mug.
Basically a meet-up, but for cunts.
ass1:
@ass2 hey, u going to the DC tweet-up?

ass2:
@ass1 yeah boyyee!
by Rohaq March 12, 2009
Get the Tweet-up mug.