脱缰之马

tuō jiāng zhī mǎ

lit. a horse that has thrown off the reins (idiom); runaway horse

out of control

脱

tuō

to shed

缰

jiāng

bridle

之

zhī

(possessive particle, literary equivalent of 的[de5])

马

mǎ

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