Innovation Insider links to a Boing Boing story on a Japanese design dimension that must confound the "yeah, but what does it do?" crowd - or anyone else for that matter. Chindogu is a kind of whimsical design that burdens the idea of usefulness with a heavy dose of irony. Presented as a solution, the thing itself is problematic to use or causes embarrassment for the user.
I see it expressed in the work of Jake Cress, whose take on furniture is all wrong for the socially correct. Though not, strictly speaking, chindogu, it is certainly serious in its unseriousness. No satire there, just fun.