A neologism. The practice of reading essentially random Wikipedia pages for entertainment or as a procrastination technique; alludes to intellectual masturbation.
I caught my boyfriend wiking off at the computer the other night.
Quit wiking off and get back to work!
The act of masturbating to the frank visual depictions seen in images on particularly salacious wikipedia pages.
Man: I was bummed that my iPhone blocks porn until I found the wikipedia article on Lesbian Sexual Acts. I was wiking off all night!