(as) easy as A, B, C

See: as easy as pie

• knock for a loop
• knock for six
• knocking shop
• knock into shape
• knock it off
• Knock it off!
• knock off
• knock off feet
• knock off pedestal
• knock off perch
• knock off something
• knock off their feet
• knock off their pedestal
• knock off their perch
• knock on the head
• knock on wood
• knock out
• knock sense into
• knock sense into someone
• knock sideways
• knock socks off
• knock someone dead
• knock someone for a loop
• knock someone for six
• knock someone into shape