Meanings of suggesting a lot in English

Way I figure it, Myra, no sense suggesting a lot of Things to a boy's mind.

His nervousness had been apparent that morning, his eyes circled with dark rings suggesting a lot of tossing and turning.

The plume is still very robust, albeit very white suggesting a lot of steam in the plume with the significant ash as well.

The mother of the groom was dressed in a leafy green silk frock that looked Elizabethan, suggesting a lot of leeway in the pirate-costume department.