when robert returned the book to regina, he had left a giant b.f.u.s.s. all over page 37, which had seeped through the next four chapters
a blood-feces-urine-semen-stain
"when robert returned the book to regina, he had left a giant b.f.u.s.s. all over page 37, which had seeped through the next four chapters" What is the definition of "b.f.u.s.s."?