xīn yuán yì mǎ
lit. heart like a frisky monkey, mind like a cantering horse (idiom); fig. capricious (derog.)
to have ants in one's pants; hyperactive; adventurous and uncontrollable
心
xīn
heart
猿
yuán
variant of 猿[yuan2]
意
yì
idea
马
mǎ
abbr. for Malaysia 馬來西亞|马来西亚[Ma3 lai2 xi1 ya4]