To be susceptible to or the target of judgment and criticism. Similar to the proverb "People who live in glass houses shouldn't throw stones." A: "Why am I living in a glass house these days? Everyone is being so critical of my taste in women!" B: "Well, your last girlfriend was really rude to us all the time." Now that I've become a vegan, I feel like I live in a glass house—I constantly have to hear everyone's opinion on veganism.