1. to explain something in excessive detail or more than necessary
Usage: often implies that the explanation is unnecessarily lengthy or condescending

Examples

• The teacher tends to overexplain simple concepts, making students lose interest.
• Don’t overexplain the joke—it ruins the humor.
• She has a habit of overexplaining her decisions to her team.
• The manual overexplains basic procedures that most users already understand.
• He overexplained the plot of the movie, spoiling the surprise ending.
• Try not to overexplain during your presentation; keep it concise.