Of or pertaining to P. G. Wodehouse (1881–1975), English writer and humorist known for his eccentric half-witted characters.
Not in good working condition.
Synonym of crank (“of a ship: liable to capsize because of poorly stowed cargo or insufficient ballast”)
Grouchy, grumpy, irritable; easily upset.
Not in perfect mental working order; eccentric, peculiar.