Bright Blessings and Blessed Be,
What is a Taglock?
By Patti Wigington
In some traditions of magic, you may see the word "taglock" used. A taglock is a magical link to an individual. For example, in poppet magic, you would use a taglock inside the doll to identify the person to be targeted by the spell. Ideally, a good taglock is one that is strongly connected to the individual -- but in a magical emergency, you can use other things as well.
Excellent Taglocks: (click here for full article)