1 definition by Marc Bullock (thanks to Cheryl)
all though originally meaning "a long time" it has been loosely evolved to also mean "a lot of something" or "many"
I have yonks of work I gotta' catch up on...
Person A: Have you ever had a latte?
Person B: yeah, yonks...
Person A: Have you ever had a latte?
Person B: yeah, yonks...
by Marc Bullock (thanks to Cheryl) April 16, 2007