動詞
搞一啲喜慶嘅事，帶嚟好運，去沖走一啲唔好嘅事；好多時特別指某種傳統嘅迷信行為：屋企有人久病不癒，就安排婚嫁，希望病人病情會好轉 to organize some happy event to bring luck and "flush out" unfortunate things; it can specifically refer to the superstitious tradition of organizing a marriage in an attempt to cure a sick family member
Definitions (Wiktionary)
verb, dated
to arrange a "warding-off" wedding (arranged for a dangerously ill young man in the hope that the wedding would ward off imminent death)