didapper /dīˈdap-ər/

1. The dabchick or little grebe
2. Someone who disappears and bobs up again

• flatirons
• flatland
• flatlands
• flatlet
• flatlets
• flatline
• flatlined
• flatliner
• flatliners
• flatlines
• flatling
• flatlings
• flatlining
• flatlong
• flatly
• flatmate
• flatmates
• flatness
• flatnesses
• flat out
• flatpack
• flatpacks
• flat-panel
• flat playing field
• flat race