suaku adjective 1noun 1forms 3 adjective1 •(Singapore, informal) Uneducated; backward.Ah Lian are not simply lowly educated, they also have supposedly 'pre-modern' or sua-ku (hill tortoise, metaphor for 'backward') modes of behaviour. — 2003 noun1 •(Singapore, informal) Someone who is uneducated; a country bumpkin.The suaku (literally "mountain tortoise" and figuratively "country bumpkin") sports a beer belly, fake brand-name apparel and oil-slick hair. — 1986 formssuakus · more suaku · most suaku