whippersnapper /(h)wipˈər-snap-ər/ (old informal)

1. A cheeky young lad
2. Any lowly person who behaves impudently

• greatest
• great fee
• great go
• great-grandchild
• great-grandchildren
• great-grandfather
• great-grandfathers
• great-grandmother
• great-grandmothers
• great Greek schism
• great gross
• great gun
• great-hearted
• great-heartedness
• great hundred
• greatly
• greatly to one's surprise
• Great Mogul
• great-nephew
• great-nephews
• greatness
• greatnesses
• great-niece
• great-nieces
• great octave