Definitions
1.verbTo cut or score; to wound superficially.
2.verbTo prevent (something) from being successful."The rain scotched his plans of going to the beach."
3.verbTo debunk or discredit an idea or rumor."The prime minister scotched rumors of his resignation."
4.verbTo block a wheel or other round object."The workers stopped the rig on an incline and scotched the wheels."
5.verbTo dress (stone) with a pick or pointed instrument.
6.verbTo beat yarn in order to break up slugs and align the threads."Yarn is scotched immediately after it has been dried and while it is still warm. http//www.google.com/patents?id=DXdGAAAAEBAJ&pg=PP3&vq=scotched&dq=scotching"
7.verbTo clothe or cover up.
8.verb(Australian rhyming slang) To rape.