A "moutza", or mountza, (μούντζα) is the most traditional gesture of insult among Greeks which consists of extending all fingers and presenting the palm towards the to-be-insulted person in a forward motion. It is often coupled with the expletives "να" (na), "παρ'τα" (par'ta) or "όρσε" (órse), meaning "here", "take these" and "there you go", respectively.
An even more offensive version is achieved by using both hands to double the gesture, smacking the palm of one hand against the back of the other, in the direction of the intended recipient. The closer the gesture is to the other person's face the more threatening it's considered. The Greek comedian Rena Vlachopoulou was famous for delivering comical, spirited double moutzes in the films and plays she starred on.
If a Greek wants to hand-signal the number 5 to someone, they take care to face their palm towards themselves and the back of the hand towards the intended recipient of the signal, lest it be misunderstood for a "moutza".
A "minor" form of the moutza is the "V-sign", again presented with a forward motion. This is not insulting as the full gesture is, and it is perceived as a "fake admonishment" joke, e.g. towards a mischievous child.
Closed moutza
A closed (or polite) moutza consists of keeping the tips of all five fingers together and pointing towards the targeted person, this gesture is usual accompanied by the preposition 'na!' (there!). Sometimes this gesture is completed with only three fingers being half opened (thumb, index and middle). Or the targeted person can be called upon to blow on the fingers in order to make them open into a full moutza. In this case it is accompanied by the imperative 'fisa!' (blow!).
Origin
The origin of the gesture can be traced back to the penal code of Byzantium, whereby a chained criminal was paraded around town sitting, facing backwards, on a donkey and with their face smeared with cindermedi Greek was called moutzosmoutza, after the name of the material applied. The modern Greek word "moutzoura" or "mountzoura" (a smear or dark stain) has the same origin. to enhance their ridicule. Cinder in (μούντζος). And, because cinder was wiped on the person's face first by collecting it in the palm and then by extending open the fingers, the gesture itself became insulting, to be known as
Other meanings
"Moutza", or "Moutzó" (as a word, not as a gesture) may be used instead of the word "woman" in Kaliardá, a cant language popular among transvestites and homosexuals especially in the years after the Second World War up to the 90s. Moutza survives to this day and is generally understood by people familiar with the greek gay subculture, but never used by heterosexuals (in contrast with other gay slang terms, which eventually made it into the modern greek language).

eee ekeina t grammata eginan katalathos kai t onoma m einai m grey gramata kai dn fainete tpt pantws afto dn einai apo t skin einai apo kati kwdikous p ekana mia mlkia...
nai alla m aresei pl afto t tragoudi an kai einai ligo xazoxaroumeno alla who cares???