The dinner was too heavy, with those stodgy mashed potatoes that were hard to swallow.

stodgy 是形容词，由动词 stodge（吃得过饱）派生而来，后缀 -y 表示"具有...特性的"。这个词形容食物"过于浓稠、油腻、难消化的"，常带有负面评价意味。