What does ick mean? Ick, usually the ick, refers to a sudden feeling of disgust or repulsion that causes a permanent reversal in feeling toward a romantic (or potential romantic) partner. ICK definition: 1. used to express a feeling of shock or dislike that makes you feel sick: 2. a sudden feeling…. Learn more. The term “ ick ” traces back to the early 20th century, evolving from the adjective “icky,” which was prevalent in American jazz culture of the 1930s to describe overly sentimental music. "Ick" is a slang term that is commonly used to describe a feeling of disgust or aversion towards something or someone. What does it mean to get the "ick"? “Ick” can be used to express a sense of discomfort or unease, particularly in social or romantic contexts.