A woman who will do just about anything (fucking, sucking, cleaning, be a house mouse, licking your boots, etc.) to date a "patchholder." (members of a motorcycle club (MC)). Will do anything the man or MC wants. Looking to score a steady boyfriend ("old man") but rarely happens cause everyone knows she is a patch licker. She hangs around only for the status of being seen with a badass patchholder and/or MC.
Dude: Man, that chick is hot! Check her out.
Patch holder: She's a patch licker. Good for a one nighter, not old lady material. But on the upside, she will do anything you want.