rat-trap bond
A bond built up of rowlocks (bricks on edge) where each course consists of alternating headers and stretchers. Although a rat-trap wall uses fewer bricks to reach a given height, and is therefore cheaper to construct, it has the disadvantage of being weak and susceptible to moisture penetration. (Phillips, 1994)
Chinese bond, rowlock bond, silverlock bond, rat-trap, rat-trap bonded wall