Staying awake, usually with
the aid of caffeine and cold showers, for over 24 hours. Usually a feat performed by
overworked students, but also by physicians and programmers, and other individuals who refuse to sleep until having solved some mystery.
An
all-nighter is NOT simply staying up until the sun rises, then sleeping.
Jennifer felt like a zombie after having pulled two all
nighters in a row during
midterms week. "Really, it's not that bad after the
40th hour or so," she said, "...once you get past the hallucinations and the funny twitching thing your legs do."