Mainline (verb)

1. To inject a drug directly into a vein using a needle.
2. To introduce or establish something as the primary or mainstream version or method.

Origin:

The word "mainline" originated in the early 20th century from the term "main line" which refers to the primary or main route of a transportation or communication system.

Examples:

1. He had to be hospitalized after he mainlined heroin.
2. She mainlined the new software into the company's systems.
3. Many users of illicit drugs prefer to mainline to get a stronger and faster effect.
4. The new product was mainlined into the market.
5. They mainlined the new feature into the latest version of the software.