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wassup

or whas·supor wus·sup

[wuhs-uhp]
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interjection Slang.
  1. what’s going on or happening; what’s up (used as a greeting).
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Origin of wassup

First recorded in 1900–05; pronunciation alteration of what’s up (in the same sense)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for wassup

wassup

sentence substitute
  1. slang what is happening?
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Word Origin

C20: from what's up?
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012