ā māo ā gǒu
(idiom) (coll.) any Tom, Dick or Harry; just about anyone (used dismissively)
阿
ā
abbr. for country names that begin with 阿[a1]: Algeria 阿爾及利亞|阿尔及利亚[A1 er3 ji2 li4 ya4], Afghanistan 阿富汗[A1 fu4 han4] etc
猫
māo
cat (CL:隻|只[zhi1])
狗
gǒu
dog