someone who texts all day/night long
Girl 1: Who are you texting over there?
Girl 2: (boys name here)
Girl 1: You're such a textitute!
One who obsessively sends text messages, especially to the opposite sex or someone who they are either involved or would like to be involved with. Also defined as one who sends a text in order to signal for a possible hookup, and often sent as a mass text to multiple numbers fishing for a taker.
Mary Anne is such a textitute for spending all of dinner texting Wally and Cecil instead of talking to her date Sid or friends Kelly Jo and Brenda Lee before the big dance at the hop.