And one paragraph later:
Teardrops tattooed on the face mean one to five years per teardrop of hard time served in prison, for example, depending on the given subculture and locale. The tattoo “AFFA” stands for “Angels Forever, Forever Angels,” and marks either a genuine member or a wannabe member of the quintessential outlaw motorcycle club, Hell’s Angels. A patchwhether motorcycle club patch, or police department shoulder patchworn upside-down on a biker’s vest signifies in the outlaw subculture that the wearer has taken it from a legitimate owner he has vanquished in combat. These things are good to know if you end up fighting someone who is “wearing the sign.”