Weeny/ˈwiːni/ Definition 1 of 2Pro Tip 1/3Colloquial Usage Used casually in everyday conversation rather than in formal speech or writing. Look at that weeny puppy over there! Pro Tip 2/3Emphasizing Smallness 'Weeny' emphasizes something is smaller than usual or notably tiny. She lives in a weeny studio apartment. Pro Tip 3/3Endearing Quality Often suggests that the small size of something is cute or charming. He gave her a weeny heart-shaped locket.