In this paper, we review the basic morphosyntactic and phonological properties of object clitic pro- nouns in Standard Greek. More specifically, we discuss the constraints on the combinatorial properties of clitic clusters and present evidence in support of the out-of-cycle adjunct status of clitic-doubled DP-objects. We then account for the distribution of object clitics with respect to the verb by means of a cliticization movement rule. Finally, we show that there is an asymmetry in the way object clitics are prosodically organized, depending on their position in relation to the verb. Being always a part of the phonological word of their verbal host, enclitics choose to incorporate to it whereas proclitics opt for prosodic adjunction.