1. working excessively hard; expending too much effort or labor on something
Usage: present participle of overlabour; chiefly British spelling (American: overlaboring)
2. belaboring a point; dwelling on or emphasizing something excessively
Usage: present participle of overlabour

1. the act or instance of working excessively hard or emphasizing something too much
Usage: gerund form of overlabour

Examples

• She was overlabouring the point about safety regulations.
• The team was overlabouring on minor details instead of focusing on the main objective.
• His overlabouring of the argument made it less persuasive, not more.
• Don't overlabour yourself with too many projects at once.
• The writer's overlabouring of metaphors made the prose feel heavy and forced.
• By overlabouring the joke, he drained it of all humor.