In regards to the name of this item, the second Chinese character of dadao, 刀, is used to refer to any broad-bladed item. Kitchen cleavers, like the one pictured above, are called tsai dao. Da dao literally means "big cleaver."
One translation often used for larger dao is broadsword, but given this term is usually associated with types of Western straight bladed swords, the decision was made to refer to this item as the BrickArms Cleaver.
Blitzen wrote:I googled it, and this does look like a da dao. However, the type of minifig wielding this weapon makes me think it's a scimitar.
Reference photo for WWII-era dadao-using Chinese troops:More photos
IVhorseman wrote:what DID get shown off, anyways?
for a partial list.