aidscancer Share definition Flag loose slang term for the deadly disease, Kaposi's sarcoma. Also known as the 'gay cancer'. Trip may be HIV positive, but if he keeps on his antivirals he won't get full blown AIDS or have to worry about the 'aidscancer'. aidscancer by Will Hustle October 29, 2007 0 0 Get merch Get the aidscancer mug. Buy Now — $32.95 See more merch