Top definition
A brick (or pound) of extremely high quality heroin. Since it's practically a concentrate it is typically cut and mixed into lesser forms.

Brock may also be known as "whip," and "rock."
"Could that form of heroin be called 'Brick?'"

"No, it was a concentrated powder, its street handle is 'whip,''rock' or 'brock'."

"A brick of brock?"
by TheCroupierDeals December 29, 2006
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