General Brazilian
trapacear, enganar, colar
Most common usage; 'colar' is informal for cheating on exams
São Paulo
dar um jogo sujo, enganar
'Dar um jogo sujo' emphasizes unfair play
Rio de Janeiro
passar a perna, enganar
'Passar a perna' is colloquial for deceiving someone
Portugal
enganar, trapacear, fazer batota
'Fazer batota' is used for cheating in games or exams