jialat adjective2 •(Singlish) Terrible, disastrous; (of a person) affected by difficulties, in a dire situation.Jialat, jialat (very serious). This one jialat. Tell me about it man. Did you use it? — 2006 •(Singlish) Sapping one’s strength; tiresome.wah lao...... jialat ahhhh you. — 1997 formsmore jialat · most jialat