Exclamation, used to show surprise, shock, anger, disapointment or disgust. Occasionaly accompanied with a surname such as McCloud or MacCannichan.
Oh shengus! That dog's shat on the carpet again.

Shengus McCloud, that's good shit!

Shengus!! Ye stepped on me foot!
by Alasdair of Geekdom. July 16, 2005
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