Cover up and Fast one

Cover up verb - To keep from being publicly known.

Fast one and cover up are semantically related in trick topic. In some cases you can use "Fast one" instead a noun "Cover up", when it comes to topics like cheat.

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

Cover up and fast one are semantically related in trick topic. Sometimes you can use "Cover up" instead a noun phrase "Fast one", if it concerns topics such as cheat.