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1. Someone who magically appears right when food has been prepared and awkwardly lingers until given some.
" Yo bro! Don't be blaisus!!!"

"No one likes a blaisus"

"Yo man, you hungry? Naw, I just pulled a blaisus on the kids down the hall that hit on your girl friend."
by Mr. Trailblaisus April 27, 2010