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Wolfy Slang: An alternative for hello or greetings. Usually used just initially in the conversation.
Person A: *Greeting Person B* Howlz, what are you up to?

Person B: Not much.
by Wolfy Hopeless September 14, 2005
a term used to express a funny situation, often in the place of laughter
Andrea: "Luke Jervis fell down the stairs last night"
Kate: "That's mad howlz, yo!"
by Jamaica Moon October 20, 2006