geh kiang adjective 1verb 1forms 2 adjective1 •(Singapore, Singlish) Overconfident and pretending to be clever. verb1 •(Singapore, Singlish) To act overly clever and end up making reckless or unwise decisions without careful consideration.[…] Who ask you? Geh kiang lah. Think you so smart, […] — 2009 formsmore geh kiang · most geh kiang