• a substance which is considered unpleasant or disgusting, typically because of its dirtiness

Synonyms: mud, muck, mire, ooze, silt, alluvium, dirt, slime, slush, slurry

• nonsense

• a contemptible person

Synonyms: despicable person/people, rabble, riff-raff, refuse, garbage, trash, vermin, good-for-nothing(s), undesirable(s), the lowest of the low, the dregs of society

• the four basic operations (create, read, update, and delete) of data storage, regarded collectively