Definition from Wiktionary, the free dictionary
See also Scotch
- Of Scottish origin.
Usage notes 
- The use of scotch rather than Scottish is generally limited to a few specific cases, such as scotch eggs, scotch plaid, etc. It may be considered incorrect usage in other combinations. It is usually capitalised Scotch.
scotch (plural scotches)
- A surface cut or abrasion.
- A line drawn on the ground, as one used in playing hopscotch.
- A block for a wheel or other round object; a chock, wedge, prop, or other support, to prevent slipping.
- a scotch for a wheel or a log on inclined ground
- Whisky of Scottish origin.
a block for a wheel or other round object
Derived terms 
- (transitive) To cut or score; to wound superficially.
- We have scotched the snake, not killed it.
- (transitive) To prevent (something) from being successful.
- The rain scotched his plans of going to the beach.
- (transitive) To debunk or discredit an idea or rumor.
- The prime minister scotched rumors of his resignation.
- (transitive) To block a wheel or other round object.
- The workers stopped the rig on an incline and scotched the wheels.
- (transitive, textile manufacturing) To 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. 
- (transitive, Australian rhyming slang) to rape
- (transitive) To dress (stone) with a pick or pointed instrument.
- (obsolete, transitive) To clothe or cover up.
- (prevent (something) from being successful): foil, put the kibosh on, thwart
- (block a wheel): chock, block
To prevent (something) from being successful
Etymology 1 
From English scotch.
scotch m (plural scotchs)
- scotch (whisky)
Etymology 2 
From 3M's Scotch tape.
scotch m (usually uncountable)