Possible Clues:

• Force of blow or collision
• Great influence of one politician on some legislation
• Blow to make brat behave
• The striking of one thing against another
• The force fo violent strike
• Force of collision or blow
• Effect as of collision
• Force or shock of a collision
• It's a blow that it's such a mischievous thing to do
• It would be a mischievous thing to do to cause such a collision