This pair of words is the most ambiguous part of the phrase, likely a of a different Javanese or Indonesian term. In Javanese culture, “ omek ” is a sensitive term that translates roughly to “female reproductive organ,” often used in a vulgar context. Meanwhile, “ Anu ” in Indonesian is a versatile filler word akin to "whatchamacallit," used when a speaker forgets a noun. In this context, "omek anu" likely functions as a risqué euphemism referring to a particular body part being sold.