A sexual manuever in which the male grips the base portion of the penis with a fist, allowing only the head of the unit to penetrate the vaginal cavity, at which point the individual removes the hand to surprise the unsuspecting female party with more the she originally bargained for.
She thought it was small, till i gave her the Half-shaft!
12π 5π
When a person can only give a blowjob half way down the penis shaft
Aaron: βDoes Jillian give good head?β
Tom: βShe was a half shaft.β
1π 1π