noun

• (slang, uncountable) Heroin.
  "Claude overdosed on smack in a Chicago flophouse three years later."
• (Northern England) A form of fried potato; a scallop.

verb

• (transitive) To get the flavor of.
  "He soon smacked the taste of physic hidden in this sweetness."
• (intransitive) To have a particular taste; used with of.
  "1820-25, Charles Lamb, Essays of Elia He had his tea and hot rolls in a morning, while we were battening upon our quarter-of-a-penny loaf — our crug — moistened with attenuated small beer, in wooden piggings, smacking of the pitched leathern jack it was poured from."
• (intransitive) To indicate or suggest something; used with of.
  "Her reckless behavior smacks of pride."

verb

• (especially outside of North America) To strike a child (usually on the buttocks) as a form of discipline. (normal U.S. and Canadian term spank)

name

• (computing) An Apache-based solution stack consisting of Spark, Mesos, Akka, Cassandra, and Kafka.