I usually just call my dually the Low Low......my Denali is called the Mommy Mobile....my 82 RCSB is called the Box Chevy.....and the my 03 RCSB is just called the primered piece lol
My red dually we named PEG after Peg Bundy from married with children, because she is red and has wide hips and wastes a bunch of money. My black and white dually we call CREWELLA.