What is Brixel?
1.
noun: The partial surface of a brick, painted in a mosaic style in order to represent a pixel used in pixel art.
Brixel is a portmanteau of brick and pixel.
A wall of brixels is called brixel art.
"Yo, did you see that brixel art someone did on the side of the library?"
"Yeah man, that is some hardcore brixeling."
See