Top definition
A unit of measurement, often used as a bartering tool among schoolchildren. It is less than half of a cigarette, but more than 'threes' (one third) which one person will share with another.
Jack: "Save me half on that cigarette please?"
Joe: "No, I want more than half, I'll save you threes"
Jack: "I don't want threes, that's not enough"
Joe: "Fine, I'll save you thralf then"
Jack: "Okay"
by Shhhhhhh17 April 12, 2009
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug