in Co. Donegal a yock can be any of the following
A Car
A Lorry
A Trailer
A Tractor
A Motorbike
A Scooter
A Bicycle
A Quad
A Scrambler
A Girl that is a bit of a slut (See Mad Yock)
by jesus sir that is a quer yock you have there (Refering to a fancy car or a modified car, i.e. a corsa with a body kit and an 5 inch exhaust on it)

That Mary is a bit of a Yock, she only called off her engagement last week and now she has a new boyfriend.
by madforthecock85 February 11, 2011
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yock is also another name for a car in Co. Donegal
AHH jaysus SIR look at that YOCK its Savage!!!!!
by Fluffyfreaker April 13, 2007
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