1-beat someone physically,
2-answer question without knowledge and without knowing the real answer (in exam or test or quiz)
meaning: the boy named ajin was beaten by a helmet yesterday
2-'aku pun tak tau'.. 'aku tibai je jawab tadi'..' aku men tibai je'
'i dont know'..'i answer the test just now without knowing the real answer'..'i just do my best'