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1.
the act of cupping and shitting into ones own hands and then slinging it on the roof or wall of the shitting establishment - extremely messy
Macca's employee: GOD DAM IT, someone has dropped a big shit sling in the toilet again, u can clean that one up mr. manager
by danny88 September 18, 2007
 
2.
the condition one is in when things are really bad
"I'm in a real shit sling at work with all that is going on."
by e LL December 10, 2008