A term derived from the outburst, "That's bull, Shack!" Signifies that the previous statement or command is unnecessary for further development as a contributing member of society.
Teacher: You will now write thirty essays over the development of the British neo-Nazi party.
Class: That's bullshack!
Noun, verb, adjective. A variation of the word "bullshit".
n. "Don't give me that bullshack."
v. "What? Are you trying to bullshack me?"
adj. "That was a bullshack call."