1. people who snigger; those who laugh in a half-suppressed, typically scornful way
Usage: plural form

Examples

• The sniggerers in the back row disrupted the presentation.
• She ignored the sniggerers and continued with her speech.
• The teacher silenced the sniggerers with a stern look.
• A group of sniggerers gathered around the bulletin board.
• The sniggerers quickly stopped when the principal walked by.
• He was embarrassed by the sniggerers behind him.