( humorous , especially BrE ) old or too old
ORIGIN: This originally referred to the fact that a horse's teeth appear to be longer as it grows older, because its gums shrink.
( humorous , especially BrE ) old or too old
ORIGIN: This originally referred to the fact that a horse's teeth appear to be longer as it grows older, because its gums shrink.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005