Cougar Koolaid Share definition Flag noun. - White wine, usually of the inexpensive variety, often sold in a box. After a box of Cougar Koolaid, she was ready for the office Christmas party. Cougar Koolaid by Johnny Teflon December 29, 2010 0 0 Get merch Get the Cougar Koolaid mug. Buy Now — $32.95 See more merch