Shomen Ate is the first technique we learn in the Tomiki Aikido system. It is the first of the atemi waza, and is considered by some to be a signature movement of Tomiki's system. Shomen ate translates to "front strike, or face strike."
Here are the gentlemen at Houston's Aikibudokan giving us a demo.
In football this movement is called the 'stiff arm'. It seems to be deployed pretty much the same, but in a running context. Funny they call it the stiff arm and aikidoka call it the unbendable arm. Same ideas being employed here.
And presenting the new shomen ate king! A young fellow that we need to recruit for a super solider program.