A dip snap (also known as 'packing') is a gesture/hand motion achieved by loosely swinging one's hand quickly with the forefinger stuck out and the thumb and middle finger touching, causing the forefinger to strike the thumb or middle finger, resulting in a sound similar to the slap caused by a regular snap. It was originally devised as a way to pack the snuff, or dip, in its tin, done by simply doing the above with the tin held firmly in between the thumb and middle finger. It is often used by "dippers" as a sort of secret calling card, to announce to other "dippers" who know what he is doing that he is a fellow "dipper". Military signalmen use hand and body gestures to direct flight operations aboard aircraft carriers. ... The index finger or forefinger is the second finger of a human hand, located between the thumb and the middle finger. ... In human anatomy, the thumb is the first digit on a hand. ... This article is about the vulgar gesture. ... Please wikify (format) this article or section as suggested in the Guide to layout and the Manual of Style. ...
Among Finnish Conscripts repeated dip snaps are a used as a gesture among conscripts, usually during the last few weeks of service to signal the impending departure to conscripts with more service left. Conscript redirects here, to artificial script. ...