chunter /chunˈtər/ (informal)

1. To mutter
2. To grumble
3. To chatter unceasingly and meaninglessly

• blackfaces
• Blackfeet
• black-fellow
• black-fellows
• black-figure
• black-figured
• blackfish
• black-fisher
• black-fishers
• blackfishes
• black-fishing
• black flag
• black-flag
• black-flagged
• black-flagging
• black flags
• black-flags
• black flies
• black fly
• Blackfoot
• Black Forest gateau
• Black Forest gateau cake
• Black Forest gateau cakes
• Black Forest gateaux
• black-fox