1 definition by Suuuuuheilyyyy
A heroin addict, normally someone who shoots or smokes meth. Using the term smack, in the slang because normally heroin causes people to nod out, making someone come up and smack em on the head.
C'mon Charlie! Get up. *Smacks the back of Charlie's head* Quit bein a stupid smackhead! We got shit to do
by Suuuuuheilyyyy October 3, 2017