Slapping your (usually) left hand to your forehead as you lower your head to make quick contact with each other. Often done in response to someone doing or saying something stupid.
-A similar response to "Here's your sign........"
-A similar response to "Here's your sign........"
Person 1: "So no shit, there I was in the middle of the street, and some guy nearly ran me over!"
Person 2: *head smack*
Person 2: *head smack*
by RocCityGoddess May 13, 2010

by AnderzaHackingPieceOfCheese January 23, 2018

A dirty anti soocial scruff that injects or smokes smack (heroin), normally seen walkin at a rapid pace, probably to get there fix. If seen approach with caution before you batter them.
by Joni Boy August 20, 2005

mum: where did you get that hat from son
kid: a smack head gave it to me out the kindness of his heart
kid: a smack head gave it to me out the kindness of his heart
by big willy hall April 12, 2006

A 'Smack Head' Is A Person Who Takes Alot Of Drugs And Usually Was Born In Deckham And Lives In A Smack Shed.
The Story Of A Smack Head
Mr 1.Weyy Ayee Did You See Those Smack Heads Going Into The Smack Shed??
Mr 2.Yess I Built It.... Duh !!
Mr 1.Oh...Are You A Smack Head?
Mr 2.Noo....(Inserting A Needle Into Mr 1's Arm)
Mr 2.Well Maybe... I Am XD
Mr 1.Weyy Ayee Did You See Those Smack Heads Going Into The Smack Shed??
Mr 2.Yess I Built It.... Duh !!
Mr 1.Oh...Are You A Smack Head?
Mr 2.Noo....(Inserting A Needle Into Mr 1's Arm)
Mr 2.Well Maybe... I Am XD
by Michael Johnstone March 20, 2008

by shaunholio March 01, 2004
