What is "to tail on"

Tail \Tail\, v. t.

1. To follow or hang to, like a tail; to be attached closely to, as that which can not be evaded. [Obs.]

   Nevertheless his bond of two thousand pounds, wherewith he was tailed, continued uncanceled, and was called on the next Parliament.
   --Fuller.

2. To pull or draw by the tail. [R.]
   --Hudibras.

   To tail in or To tail on (Arch.), to fasten by one of the ends into a wall or some other support; as, to tail in a timber.