Top Definition
Somebody who rips people off or does things that only benefits themselves.
Don't make deals with him, hes a shiester.
by Simon D. February 08, 2005
1 more definition
a shiester is a person who is shiesty - or low-down and dirty.
Probably someone you'd smack with a concrete c*ck, if you could.
"That shiester just left a buttery dollar in my yard."
by Kate Wu December 12, 2007

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