A pleasurable experience that most males and about half of females experience regularely in their lifetime. The way a male would experience this would be to grab the shaft of the erect penis and rapidly moving the foreskin up and down until a climatic experience is reached and semen is rushed out of the penis.
1) i was wanking in the kitchen
2) my parents were gone so i had a wank
3) my friends wank but i don't want to
4) i don't know how to wank
5) i love to wank