What is "whiners"

Usage examples of "whiners".

She would have expected him to throw in his lot with the “old whiners,” but instead he had turned into one of the first to try and work out a solution to problems as they arose.

The latter were snatched up greedily by the “old whiners,” Caellach Gwain predictably among the first Shana noted that there wasn’t a single word of thanks from any of them, but she kept silent about it, in part because she was too tired to make an issue of the slight.

The whiners were informed by the cooks that the quantities were all adapted to their individual dietary needs -- each kid's portion size came up on a computer display when he palmed in upon entering the mess hall.