As a scholar, he was content to squeak by, passing his courses with a gentleman's C and an occasional B.

His you-know-what turned soft .. his eight o'clock class was the last thing on his mind five minutes ago, when his banana wasn't overripe.

This system of so-called allostasis, of maintaining control through constant change, stands in contrast to the mechanisms of homeostasis that keep the pH level and oxygen concentration in the blood within a narrow and invariant range.

When sued for refusing to pay for services provided by a prostitute, the customer raised the defense of illegality.