chortle /chörtˈl/

1. To chuckle
2. To utter a gurgling, gleeful laugh

Such a laughing noise

• backgammon
• backgammoned
• backgammoning
• backgammons
• back-ganging
• back garden
• back gardens
• back green
• back greens
• background
• background heating
• background processing
• background queue
• background radiation
• background radiations
• backgrounds
• background tasks
• back-hair
• back-hairs
• backhand
• backhanded
• backhanded compliment
• back-hander
• back-handers
• backhanding