French Trick
A 19th century slang for blow job with a female prostitute.
The street walker made a name for herself by being the queen of the French Trick as she feared getting the clap or even pregnant.
French Flipper Trick
Similar to the Shocker but with three in the vagina and one in the asshole. The fingers in the vagina are wiggled in a waving motion similar to a penguin flapping it's flippers.
"I'd like to show her my French Flipper Trick"