hottin it up Share definition Flag this is what happens when an unattractive ho goes to great lengths to confuse dudes into thinking that she isnt that busted yo dude, did you see jen tonight? she didnt even look that fat....she was really hottin it up hottin it up by matt m7777777 August 8, 2005 0 0 Get merch Get the hottin it up mug. Buy Now — $32.95 See more merch