Slang for Authentic. Being real, true, verified, or showing unquestionable evidence. Tic can be used to express feelings of authenticity or explaining a person or object is it's own true form.
"This painting is a Tic piece from Leonardo davinci."
Most documentaries have some form of Tic to them."
A penis: the size of which is comparable to the popularcandy called "Tic Tacs". When seen by a person of the female gender the mood is normally killed.