I might have said this before, but I’ll describe the way I come up with titles, as it confuses even myself sometimes. For every single figure I have a sketch on paper first, this sketch seldom represents what the final figure ends up looking like, much because of the transition to perspective which automatically changes thing around. The name, in any case, comes from the original sketch. I decide what to name all my files from when I make the first digital file. In this case it was most likely the top shape that made me think of the name, while the entire figure feels fairly unrelated.
Going from the top to bottom the single object turns into one board and one U-shape.