A sexual act involving doggie style sex and when your partner least expects it, you stick your index finger into your partners ass and quickly make a hook with it and catch the inside of their mouth, pulling back like a fish hook.
"It was so nasty. When i was having sex with my boyfriend, he jamed his finger into my ass and gave me a john the fisherman!! I tasted that for days!"
by Flyingpenguin February 07, 2008