This quote captures an intriguing moment of unexpected interaction, where the speaker perceives an attempt at intimidation but finds it almost humorous rather than threatening. The subtlety of the attempt, marked by it being whispered rather than shouted or overt, contrasts with the speaker's reaction—biting her lip to stifle laughter. It reveals a character who is either confident or unphased by intimidation, suggesting a strong personality or someone familiar with unusual social dynamics.

The phrase "trying to be inconspicuous" adds a layer of irony. Usually, intimidation involves making a presence felt, being sharp or overt in showing power, so the choice to be quiet and subtle in such an attempt is unexpected and perhaps ineffective. This resonates with the common social observation that intimidation often loses its power if it’s timid or half-hearted.

Moreover, the statement "I'd never had an attempt at intimidation whispered at me before" signals a breaking of social norms or expectations. This is a fresh experience for the speaker, highlighting her unique perspective or life circumstances. It could also be reflecting the speaker’s unshakable nature—where typical displays of aggression or dominance hold little sway, indicating self-assurance or resilience.

Overall, this quote communicates themes around power dynamics, communication styles, and personal strength. The subtle humor intertwined suggests that the speaker embraces life's unusual or challenging moments with a measure of lightheartedness rather than fear or anger, enriching her character depth and making the narrative engaging.