In texting the inability to be witty, clever (or even coherent) when it's important to make a favorable impression.
She: Huh? Wht a dorky comment.
He: Uh, sorry, I get all thumb-tied when having text with a new girl--nervous, can't think of what to say uh do you like dogs?
She: Chill. Take a Beta blocker. SYL. Not! dork.