Smack: Meaning (information, definition, explanation, facts)

See:

• To strike with an open palm, such as to smack a child. See spanking
• Slang for heroin
• General term for a small decked or half-decked vessel, sailing under various rigs and used principally for fishing
• an Open Source XMPP client library for instant messaging and presence. http://jivesoftware.com/xmpp/smack/