yellow grease

elbow grease

Effort or hard work, especially physical work involving repeated motion of the forearm, such as scrubbing.

grease monkey

A mechanic, often with the specific connotation of an automobile mechanic.

grease payment

A bribe or extorted money, usually relatively small in amount, provided to a low-level government official or business person, in order to expedite a business decision, shipment, or other transaction, especially in a country where such payments are not unusual.

grease someone's palm

To bribe a person.

grease the skids

To create conditions likely to produce or hasten favorable future developments.

grease the wheels

To create conditions likely to produce or hasten favorable future developments.

see yellow

To receive a yellow card.

wear yellow stockings

be jealous