Define So Shoot Me Meaning

So Shoot Me
A phrase used to basically say "Whatever", "I don't give a fuck", or a sarcastic "Well Excuuuuuse me".
Often said in response to somebody pointing out the fact that one is wrong in a matter that is of total unimportance.

Person 1 - Actually you're wrong. Now Neptune is the farthest planet from the sun.
Person 2 - So shoot me.
By Lorette