Groovy/ˈɡruːvi/ Definition 1 of 3Pro Tip 1/3Positive Energy Used to describe something that brings joy and excitement; conveys a lively atmosphere. That party was groovy, I never stopped smiling! Pro Tip 2/3Casual Lingo More common in casual or informal situations, not frequently used in formal contexts. Our hangout yesterday was really groovy. Pro Tip 3/3Expression of Approval Often used to express liking or approval towards something stylish or enjoyable. Your new skateboard design is totally groovy!