American & Australian, informal

to lack energy and interest.

It's a little ironic that he criticizes Bill for not being dynamic. He's no ball of fire himself.

• be as solid as a rock
• be as sound as a bell
• be as sound as a dollar
• be as stiff as a board
• be as stiff as a ramrod
• be as straight as a die
• be as straight as a ramrod
• be as strong as an ox
• be as stubborn as a mule
• be a star in the making
• be as thick as thieves
• be as thick as two short planks
• be as thin as all get out
• be as thin as a rake
• be as thin as a stick
• beast of burden
• be as tough as old boots
• be as ugly as sin
• be a sure thing
• be as white as a sheet
• be as white as snow
• beat about the bush
• beat a dead horse
• beat a hasty retreat
• be a tall order