Could this be "he wants egg"? As in he wants some egg to put into something else?
Egg here is singular, and i An peu sure that they meant "he wants an egg".. thus far, the plural forms i have learned have either ם or ות endings (gender respective).. (and i, too, answered incorrectly with "he wants eggs")
The tsadi was not enunciated well from my hearing. Did anyone else notice that?