馬後砲

lit. firing after the horse / fig. belated action / giving advice in hindsight

surname Ma / abbr. for Malaysia 馬來西亞|马来西亚[Ma3 lai2 xi1 ya4]

horse / CL:匹[pi3] / horse or cavalry piece in Chinese chess / knight in Western chess

back / behind / rear / afterwards / after / later / post-

variant of 炮[pao4]