Rigid; hard to bend; inflexible.
(figuratively) Inflexible; rigid.
Formal in behavior; unrelaxed.
(colloquial) Harsh, severe.
Painful or more rigid than usual as a result of excessive or unaccustomed exercise.
Potent.
(informal) Expensive, pricey.
(informal) Dead, deceased.
(slang) Erect.
Having a dense consistency; thick; (by extension) Difficult to stir.
Beaten until so aerated that they stand up straight on their own.
Of an equation, for which certain numerical solving methods are numerically unstable, unless the step size is taken to be extremely small.
Keeping upright.
Of a shot, landing so close to the flagstick that it should be very easy to sink the ball with the next shot.
Delivered more forcefully than needed, whether intentionally or accidentally, thus causing legitimate pain to the opponent.

(Canada, US, countable, slang, uncountable) An average person, usually male, of no particular distinction, skill, or education.
(countable, slang, uncountable) A person who is deceived, as a mark or pigeon in a swindle.
(countable, slang, uncountable) A cadaver; a dead person.
(countable, slang, uncountable) A flop; a commercial failure.
(US, countable, slang, uncountable) A person who leaves (especially a restaurant) without paying the bill.
(US, broadly, countable, slang, uncountable) A customer who does not leave a tip.
(countable, uncountable) Any hard hand where it is possible to exceed 21 by drawing an additional card.
(countable, slang, uncountable) Negotiable instruments, possibly forged.
(countable, slang, uncountable) A note or letter surreptitiously sent by an inmate.

To fail to pay that which one owes (implicitly or explicitly) to another, especially by departing hastily.
To cheat someone.
To tip ungenerously.
(slang) To kill.
(informal) To be unsuccessful.

Of the wind, with great force; strongly.

stiffest

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