cancer Share definition Flag A very irritating person. A person that sticks to you like cancer (the disease) and is highly annoying, pesky and bothersome. A: Yaar, Prob. ke notes de ga? B: Sure. A: Can i have lunch with you too? B: CANCER NA BUNN !!! cancer by Sheikhooo August 20, 2008 0 0 Get merch Get the cancer mug. Buy Now — $32.95 See more merch