Yes he can,He used it when i fight over solitude.

In the beginning of the game did I want to put an early end to the civil war and sneaked into Ulfric's quarters and tried to kill him, only to find out that he was an essential character. Lots of fus-ro-da was the result. And all his guards are essential, I could not kill a single one of them, which svcked.

I have video of him shouting at me, after the civil war questline I attacked him lol.

Nords+Ulfric+dragonborn= Destruction of Thalmer and Imperials.

What I'm wondering is, which version of the story is true? Did Ulfric shout him off the throne and slay him with a sword? Or did the shout really tear his body apart?

its a gag not a peace of cloth gently tied around his face. you can yell, scream, and hum but you cant move your tongue or lips to form words. a thu'um is a word, not random moaning or groaning.

You know, that's really pretty cool on their part. Very smart of the Imperials to gag someone who can use the Thu'um.

Baalgruff can shout, you shout at him and you don't get a bounty, the same is true for ulfric (although i havent tested on him yet)

Depends how tightly it was tied up, if he shouted he could also potentially rip his own head off.

The game tells you the story. Read the spoiler if you want to know:

Obviously I already knew that, if you read my post. The game presents two sides of the story that people believe just as much..Ulfric could be lying to try and seem more honorable, or it's one of those tales that got blown way out of proportion.

Well he knows Disarm and Unrelenting force, last time I checked neither tears people to pieces.

If Unrelenting Force can fling Mercer Frey with all his Nightingale powers into a wall and kill him, imagine what it can do in a smaller area to a weaker man. Less "explosion," more "splat."

Right, so..perhaps he is telling the truth. Either way it's just one of those situations where we might not ever know. Just a legend now. Unless one of the DLCs has an opening cut-scene reliving the events that lead up to the War.

He shouted him, nearly tearing his body apart and finished him off with a weapon. I believe it was a sword.

He uses Fus Ro Dah and Disarm. When we attacked Solitude, there was a lot of Imperial Soldiers punching us.

He shouted at me when i showed up with the Imperial army and took Windhelm. Staggered me a bit. Then I shouted back. He bounced off the far wall and fell to his knees.

I suspect something like a piece of cloth or wadding was put into his mouth and then the cloth tied around his mouth to stop him spiting it out, this method would stop him being able to form words/shouts properly, also his nose is not covered so i'd imagine thats how he's getting his breath.

Yeah he shouted at me one time when i fought him yeah i was like he just shouted me he used fus ro dah.

Jarl baalgruff also went to high hrothgar. He's tells the dragonborn when he suggest him that being summoned is a great honor.

He can shout but basically he can't swat the flies off his butt when it gets down to it.

Makes sense. He is a normal man who had to train from childhood to be able to do what he did. You are the dragonborn who is a more adapt learner then even the greybeards themselves with enough potential to become stronger then they are. Why wouldn't you be able to bounce him off of a wall?

He attempted to shout out my voice when we fought in windhelm.

Funny you should mention that. As I recall, Ulfric whimpered like a pup as he crawled at the feet of Tullius and the Dovahkiin at the front steps of his palace in Winterhold. I guess your name is supposed to be ironic? Rebel scum... Now that the rebel dogs have been routed, we can get back to (rebelling?) ousting the Thalmor.

(All in good fun...It's nice to have such disparity. It means they did a good job of writing a conflict without a clear "good guy.")

I was not sure if you knew so I posted it. If you then do not believe him when he tells you the truth, then who do you want to believe? If you doubt everyone's word then you will have a hard time finding the truth at all. You need to make a choice. Either you believe the rumours or you believe Ulfric. Either one can be the truth.

There is then no one truth or an absolute truth, nor is truth based on a majority concept like democracy. Even when you choose to believe one side of a story is there always a chance for someone to come and tell you a different - a third - version. You are never save from believing the wrong things and so you may as well choose to believe which ever you like best until a better one comes along. Try to find reasons why you want to believe in either of the versions and match them against each other. Maybe this will help.