(informal) A male nanny (for children).
*2006 [Perry Taylor] has popped up in supermarket tabloids as the male nanny – or "manny" – for Britney Spears, who has a 9-month-old son, Sean Preston and is pregnant. —
CBS News, 9 June 2006
* 1901 , Charles Conrad Abbott, A naturalist's rambles about home
- All I know is, it doesn't seem strange in the turkeys, and same way I've seen rock-fish move like soldiers on a school of minnies ; but for the plovers to do the like seemed all out of place, somehow