The word "stuff in" can be substituted with an array of synonyms that may be more suitable depending on the context. The following are potential synonyms for the phrase "stuff in": pack, cram, fill, squeeze, wedge, force, push, compress, jam, thrust, shoehorn, ram, stuff, stash, tuck, lodge, embed, implant, insert, infix, insinuate. These synonyms might be used to describe actions such as packing a suitcase, filling a container to maximum capacity, or forcing an object into a tight space. Whether it be physical or figurative, when one needs to express the idea of forcing something into a tight space or fitting something into a container, there are a variety of synonyms for the phrase "stuff in".