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1.
Naive, stupid. Can't tell one's ass from first base; see Shinola.
"That yahoo can't tell shit from shinola"
"That geologist can't tell schist from shinola."
by Octopod November 06, 2003
 
2.
This word is used to describe not understanding or knowing what is going on.
Teacher: What is 4+9/2

Student: Ask someone else, i don't know shit from shinola.
by Eerad June 14, 2011