The Australian actor Errol Flynn had an amazing prowess with the ladies, and of course the tabloids built this into a legend.
During the Second World War, servicemen coined the phrase “in like Flynn” either to brag about their own conquests or to describe someone they envied.
Flynn said he hated the expression, but his own boast that he had spent between twelve and fourteen thousand intimate nights ensured its survival.
We say “He’s in like Flynn” when a man gifted with charm seizes an opportunity.