Chalk Hill Clan
The clan of the Nac Mac Feegle whose Big Man is Rob Anybody. They are the stars (and comic relief) of the Tiffany Aching novels for younger readers. In fact Tiffany was once Kelda of the clan, before the arrival of Jeannie who married Rob, much to the relief of Tiffany.
The name shares a striking similarity to the 60's cartoon anti heroes "The Ant Hill Mob".