tabbed 1comm. to be slow at learning or understanding things; stupid. Tabbed ka te dooh uma hina on uggem inilan aton. You are stupid because for a simple thing like that you do not know how to do it. Sim: nengneng. (sem. domains: 3.2.1.4 - Stupid.) 2proc. to become stupid. Tumabbed tan makiay-ayyam ke he-a. I will become stupid playing with you. Kahintabtabbedom. You are pretending to be stupid. ‑um‑/‑imm‑, kahiN‑ ‑on. Language Of Borrowing: Ilocano.