  Let $G$ be a locally compact group, $w$ be a weight on $G$ and $\Phi$ be a
Young function. We give some characterizations for translation operators to be
topologically transitive and chaotic on the weighted Orlicz space
$L_w^\Phi(G)$. In particular, transitivity is equivalent to the
blow-up/collapse property in our case. Moreover, the dense set of periodic
elements implies transitivity automatically.
