The phrase "huge rally" means a large gathering or event where a lot of people come together for a common purpose, usually expressing support or enthusiasm for something. Full definition
With passion rarely amassed today, the editors and those people important to them held huge rallies in downtown auditoriums. (religion-online.org)
FES helped fund huge rallies beloved by Eva Moskowitz, who mandated attendance by her Success Academy students and their parents. (uft.org)
It's still a total gem though, as it delivers intense, authentic racing action across six huge rallies with 70 + stages, letting you command more than 40 realistic rally cars from across the years. (stuff.tv)