(of a place) lacking fresh air or ventilation

a stuffy, overcrowded office

(of a person) not receptive to new or unusual ideas; conventional and narrow-minded

he was steady and rather stuffy

A children's toy, typically a toy animal, made of fabric with a soft filling; a stuffed toy.

(chiefly New England regional). A dish consisting of chopped clam meat (typically that of a quahog clam) seasoned and combined with other ingredients and baked and served in the clam shell; a stuffed clam. Usually in plural.