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1.
A nickname for the name Soondus. Usually very weird and makes odd noises.
Stop being such a soondy. That noise sounds gross.
by Leowitz April 08, 2008
 
2.
someone who is sound - that u get on well with.
person 1: Tams a ged cunt eh?
person 2: aye! a right wee soondy.
by Kevin J Henderson February 06, 2009