1. The act of sexting on twitter. The equivalent of public sex if your account isn't protected. also known as twexting.
2. The act of saying lewd things to each other on twitter.
1. @hotgirl: @randomguy I so wanna have twitter sex, right now.
@randomguy: @hotgirl But I'm scared.
2. @hotguy: @sexygirl you have huge tits. I wanna suck em.