Flush (verb)

1. Make the face and neck become red and warm, typically as a result of embarrassment, anger, or a strong emotion.
2. Cleanse (a toilet) by causing a large amount of water to pass through it.

Origin:

Early 16th century (as a noun denoting a flood, a flush of water): from old french flu(e)sse, from latin fluxus "flow", from fluere "to flow".

Examples:

1. He flushed with embarrassment.
2. She flushed with anger.
3. He flushed the toilet.
4. He flushed the pipes.
5. He flushed the radiator.