BEHEAD

• Blow the foam off a brew?

• Blow the suds off (your suds)

• Chop off the old block?

• Decapitate

• Decollate

• Dispatch, as Mary Queen of Scots

• Do a certain executioner's job

• Execute, in old France

• Guillotine

• Kill, as during the French Revolution

• Kill, for the revolution

• Obey the Queen of Hearts?

• Punish barbarically

• Punish, French Revolution-style

• Send to the block

• Take off the top

• Take the top off

• Use a guillotine

• Use the guillotine