squirrel nuts Share definition Flag When a guy gets out of a pool and his balls are so shriveled up that they are the size of squirrel nuts. I hate how I always have squirrel nuts after I get out of the pool. squirrel nuts by quest?onmyidentity September 21, 2007 0 0 Get merch Get the squirrel nuts mug. Buy Now — $32.95 See more merch