A combination of the words 'why' and 'hello'
by DUALACTION November 2, 2010
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Whello means/stands for "Well" and "Hello" combined. It's said when you're a wee bit suprised but says hello anyways.
"Whello, didn't think you would be here downtown"

"Whello there m8 didn't see you there"
by BlueForHire January 2, 2019
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