(idiom) Humble expression for one's own suggestions or gifts; literally "a peasant offering the warmth of the sun," based on a story of a farmer who thought sunbathing was a secret luxury worth presenting to his lord.

(dialect) to brag or exaggerate; to show off; to boast; often used in Wu dialects like Shanghainese

to offer a humble gift or suggestion, used as a self-deprecating expression for one's own contribution; literally a rustic offering sunshine