Mouzza

Regarding about a post from a few days ago, Abdullah (among others) sent me this:  "Actually, in Egypt, the term "Mouzza", which also means "banana" is now a catcall of sorts, used to refer to attractive women.  I heard it a number of times among younger male friends last time I went."  But her name is mouzza too: so how did the correspondent of the Economist know it was a catcall?