Tanjung Karang MP Tan Sri Noh Omar argued with Deputy Speaker Nga Kor Ming in the Dewan Rakyat on Thursday for allowing Finance Minister Lim Guan Eng to use the word “rompak” (robbery) in reference to the RM18bil input tax credit under the GST system which has allegedly gone missing as it raised suspicion on then Finance Minister and Pekan MP Datuk Seri Najib Razak.