крутить пальцем у виска gen.

[bezoo]

Пожалуйста, помогите перевести.

Выражение встречается в следующем контексте:

Заранее спасибо

[Wolverin]

есть в лингве, начните оттуда.

[nephew]

Signaling that someone is "crazy" can take on a variety of forms. In Germany it is done by rotating the forefingers back and forth around one's temples. Italians send the same message by tapping their hands to their foreheads. To complicate matters, in Holland a forefinger to the temple means "intelligent" whereas a forefinger to the forehead signals "crazy." The common North American gesture of a circular motion around the temple actually signals "There's a phone call" among Argentineans.
http://www.studyenglishtoday.net/lesson7.html