2. Noun. (context: paper manufacture) An undesirable pink-colored microbial mass occurring in the slurry used in making paper. (defdate from 1951) ¹
3. Noun. (informal dysphemistic) A meat byproduct produced from scraps by heating and then treating with ammonia to produce a food additive. (defdate from 2001) ¹
¹ Source: wiktionary.com