Tom: I can't help it, I haven't had a wank in over a week, and I'll fuck anything tonight.
-Skirt sharking is extremely popular in Japan whereas blouse sharking is prominent in parts of Europe.
Example: do a "Google" for "japanese skirt shark"
To "shark" one must go inside the shark with their legs in the mouth and hang upside down. This is an alternative to planking.
Girl: I'm sharking!!!