* Sean calls him this on a daily basis.
Dex was all ready to go to bed (as you can tell by his outfit) and wanted to go outside one last time, so I took him out. He discovered my watering can this weekend and now plays with it pretty much any time we're outside. He carried it down our front stairs (which was hilarious and I wish I had pictures, but he still wants to hold my hand when he steps down the stairs, so I couldn't very well take a photo at the same time) and then pushed it up and down the sidewalk. He'd adjust it just how he wanted it, then start to push. It was a very serious process.
Not sure about the tongue out, but let's be honest, does anyone ever really know why babies do what they do??