An idiot is someone who is a perfect example of idiotism, who is idiotistic, idiotic, full of idiotness, uses idiot cards, watches an idiot box, and/or is clearly brimming with idiocy.

He was sweating bullets about the exam all week.

This same publisher notes pricing is a crucial factor in the mass market field of $1, $1.95 and $2.95 flats.

Allowing a known trouble-maker to join the team is making a stick for your own back.