noble wank
To remain stoic and in touch with your spiritual side while engaging in the act of masturbation. It could also be to masturbate with a higher purpose in mind than merely the pursuit of bodily pleasures.
Father: son, did i just catch you tugging your meat soldier?

son: yes dad, but dont worry, it was a noble wank.

Father: Well that's ok then son, you have maintained your dignity. I'll speak with your mother and see if we cant raise your allowance a bit.

son: thank you father.