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1.
Hippie, Dead Head, anyone associated with patuli, hemp clothing, birkenstocks, Phish, WSP., etc. etc. A person that constantly appears to need a bath.
Wide Spread was in town last week and I saw alot of hot soilies, but they'd have to bathe first before I'd do 'em!
by DBR October 10, 2004
 
2.
an occasion, situation or person which leave you with an unsavory or dodgy experience.
you sir are a soily bastard
by Lex Luthor August 01, 2004