Definition of gaggles:
(n) :
(collective) A group of geese when they are on the ground or on the water.
(n) :
(by extension) Any group or gathering of related things, particularly one perceived as noisy, boisterous or chaotic.
(v) :
To make a noise like a goose; to cackle.
(n) :
(collective, historical): A group of women.
(n) :
Short for press gaggle: an informal briefing of journalists. [(US, journalism, politics) An informal off-camera briefing given by a spokesperson or politician.]