Created by: libertybelle
Definition: n., An expressive gesture made with the belief that the person it is directed at cannot see it, typically occurs during telephone conversations, email discourses, and behind people's backs. v. To use an unseen gesture to express what you cannot say.
Sentence: Thinking that his extended middle finger could not be seen, Glenn told Barry in not so many words that he thought Barry was "number 1"; too bad Barry saw the guessticulation reflected in the window.
Etymology: guess + gesticulate