Blimps out, also known as inflates or expands, refers to objects or materials that become enlarged or filled with air or gas. Synonyms for blimps out could include inflates, swells, bulges, bloats, puffs up, distends, or expands. This term can be used to describe a variety of objects, from balloons and tires to clothing and food. Blimping out can also be used figuratively to describe someone who becomes excessively full or conceited. Synonyms for this usage could include bloated, swollen-headed, arrogant, or haughty. Overall, there are many ways to describe the concept of blimping out with different nuanced synonyms.