What does ass roast ass roast mean?

ass roast ass roast meaning in Urban Dictionary

an extremely big, smelly bowel motion This is actually the debut song title by Lilli & Kiikii. It kicks butt fine? Everybody else should listen to it. because it is that amazing. " unbuckle and chuckle with your ASSSSSSSSSSSSSSSSSSRRRRRRRRRRRROAAAAAAAST! "