CAD ASS Share definition Flag When youre ass grows large and jelly like from doing to much CAD work. (Computer Aided Design) I have got to get out and walk around more I am getting such a CAD ASS from sitting my pants hardley fit me. CAD ASS by drafthorse May 27, 2008 0 0 Get merch Get the CAD ASS mug. Buy Now — $32.95 See more merch