Stoop Share definition Flag Noun or verb. A stupid person or the act of engaging in stupidity. "He watches Jerry Springer every day. He's such a stoop." "Your shirt's on inside out! You really stooped it up this time." Stoop by sonicliz September 25, 2005 0 0 Get merch Get the Stoop mug. Buy Now — $32.95 See more merch