oil burner

add oil

Synonym of let's go: a cheer of encouragement, support, etc.

burn the midnight oil

To work studiously, especially late into the night.

oil and water

Two things which are incapable of mixing or coexisting harmoniously with each other.

oil trash

An uncultured, rowdy roughneck employed in the petroleum industry, especially a "white trash" person if used negatively.

pour oil on troubled waters

To calm, appease or quiet a person or situation.

snake oil

A fraudulent, ineffective potion or nostrum; panacea.

strike oil

To have sudden good fortune, especially financially.