verb; literally: hit and kill the horse, Metaphor for people running amok or rampaged
Definitions (粵典–words.hk)
語句
形容一個人神色慌張,好似啱啱撞死咗人哋隻馬咁款 to behave as if one has seen a ghost, to be in a great rush.
你做乜咁驚青,撞死馬咁款。
你做乜咁惊青,撞死马咁款。
nei5 zou6 mat1 gam3 geng1 ceng1, zong6 sei2 maa5 gam2 fun2. Why are you so scared, you look like you have ran into a horse.