rain man; man who brings rain
A playful term for a man whose presence seems to cause rain, often used when outdoor plans are spoiled by bad weather. Compare with 晴れ男 (hareotoko, 'sunny man').
See also: 晴れ男
He's a rain man, so it always rains on picnic days.
Rain again? You're such a rain man.
Standard kanji spelling.
Compound of 雨 (ame, 'rain') and 男 (otoko, 'man'). The exact origin is uncertain, but it likely arose as a casual, humorous label.