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a whelo is a balding person (more commonly male). where a whelo is a noun it can alo be used as a descriptive adjective or or even verb as many 'whelos' are over confident and loud.
noun; oh my god look at that whelo!

descriptive adjective; he looks a bit whelo

verb; you did a whelo!
by Fionn McDonnell February 16, 2007