mǎ chǐ tú zēng
(self-deprecating) to have grown old without accomplishing anything (idiom)
马
mǎ
abbr. for Malaysia 馬來西亞|马来西亚[Ma3 lai2 xi1 ya4]
齿
chǐ
tooth
徒
tú
(bound form) disciple; apprentice; believer; (derog.) wrongdoer (as in 騙徒|骗徒[pian4 tu2] "swindler" or 叛徒[pan4 tu2] "traitor" etc)
增
zēng
(bound form) to increase; to augment; to add to