Fast one and Flimflam

Fast one noun - A cunning or deceitful action or device.

Flimflam and fast one are semantically related. in trick topic. In some cases you can use "Flimflam" instead a noun phrase "Fast one", when it comes to topics like cheat, swindle, misleading, hoax.

Flimflam noun - A clever often underhanded means to achieve an end.

Fast one and flimflam are semantically related. Sometimes you can use "Fast one" instead a noun "Flimflam".