-a flock of geese when now flying.
-on often noisy or disorderly group or gathering.
-an assortment of related things.
Used in a sentence:
-They followed her everywhere, like a gaggle of children promised a treat out of a grandmother's pocket.
I came across this word in my reading and was very curious what it meant. It makes much more sense to me now considering what book I am reading too. Please enjoy this word as much as have.