Faces made of a single pile of sand. Pebbles, shells, sticks and seaweed are used to define facial features such as nose, eyes, mouth, ears, etc. Grunkies are meant to be a little grotesque. They are said to keep watch over swimmers and protect them from dangers, such as the undertoad.
Sean: Though we built three grunkies, you should still be careful of the undertoad.
by RedFieldsOfNone October 24, 2011
I've always used this word as "gross" + "chunky." I invented this word years ago to describe some nondescript cafeteria food. Looks like others invented a word with a similar definition.
"Honey, I appreciate you making your family's traditional prune and peanut habanero chili con carne yesterday, but the results were rather grunky."
by richpee November 01, 2007