luppen /lupˈn/ (Scot) pap of leap¹

• bubblers
• bubbles
• bubble-shell
• bubble-shells
• bubble sort
• bubble under
• bubble wrap
• bubblier
• bubblies
• bubbliest
• bubbling
• bubbly
• bubbly-jock
• bubbly-jocks
• bubby
• bubinga
• bubingas
• bubkes
• bubkis
• bubo
• Bubo
• buboes
• bubonic
• bubonic plague
• bubonocele