expression, godan verb (-bu)
cry out for reform; clamor for change
A set phrase meaning to vocally and insistently demand reform or change, often in political or social contexts. The verb 叫ぶ here is used in its figurative sense of 'to proclaim' or 'to advocate strongly'.
See also: 叫ぶ (さけぶ)
市民たちは街頭で改革を叫んだ。
The citizens cried out for reform in the streets.
He is always clamoring for change at meetings, but never makes concrete proposals.