That's the sound made when you rapidly flip a finger across your lips while blowing out. There should be one of those silly emoti-whatsits (maybe complete with sound) for that particular frustration-inspired emotion.
I've been doing a lot of that over the past week. New software for website building and a sortofa-kinda deadline will do that to you. But today I had a break-through of sorts and managed to get half a dozen check-pages up on my site in a blind folder so they aren't publicly available but can be evaluated for function and esthetics. A great relief.
I can only hope that things will go more smoothly from now on and that I can get the newly revised website up in a week or so.
If not, there will be a lot more blub-blub-blub going on around here.