1. drawing liquid from one container to another through a tube using atmospheric pressure
2. gradually taking away or diverting something, especially money or resources
Usage: figurative

Examples

• He was syphoning gasoline from the tank into a container.
• The mechanic is syphoning the old oil from the engine.
• They were caught syphoning fuel from parked cars.
• The corrupt official was syphoning funds from the charity.
• The new tax policy is syphoning money away from public schools.
• She accused him of syphoning customers away from her business.