A person(s) with an addiction to cocaine. The word petrolhead comes from the use of petrol in the synthesis of cocaine

Origins: This word dates back to the late 90's / early 00's. Originating from the coke capital of the world (Bristol).
"Toilets in lakota..."
X: Got some of that 10/10 Peruvian

Marching Gear
Y: You fucking petrolhead

X: *Sniffffffff*
Y: Well gives us a stripe then
by Your Local Priest February 25, 2020
Get the Petrolhead mug.
Enthusiast of petrol (gasoline) engines or cars
Petrolheads may prefer the gasoline version of this automobile to the diesel one.
by Anonymous October 15, 2003
Get the petrolhead mug.
Term of abuse used by environmentalists against car users.
"The petrolheads may soon run out of road; gridlock is certain in many areas by 2005"
by Nupe January 7, 2004
Get the petrolhead mug.