1. in a friendly and familiar manner; as a close friend would act
Usage: informal

Examples

• He greeted his old classmate chummily, putting an arm around his shoulder.
• She spoke to the new employee chummily, making her feel welcome on the first day.
• The coach addressed the team chummily, joking and laughing with the players.
• They sat together chummily, sharing stories and memories from their childhood.
• He waved chummily across the room when he spotted his friend.
• The host treated all the guests chummily, as if they were old friends.