There are various synonyms for the phrase "squeal like a stuck pig." This expression is typically used to describe someone's loud and high-pitched screams or cries of pain, fear, or distress. Alternative phrases with similar meanings include "yell like a banshee," "howl like a wounded animal," "screech like a cat in heat," "scream bloody murder," and "shriek like a maniac." Each of these phrases paints a vivid picture of someone experiencing extreme discomfort or agony. However, it's important to note that using such expressions to describe a person's suffering is insensitive and should be avoided.