blotter

noun

1. A piece of blotting paper in a pad as a piece of desk furniture.
2. A daily register of arrests and other events in a police station.
3. A register of the related events made in the form of the list of times and brief descriptions.

   “All transactions were entered in the cash blotter and agent's subsidiary ledger.”

   “He maintains the political blotter blog.”

   “"The blotter was so full of his scribbling, it was getting harder and harder to find places to write in."”

4. (slang)A portion of blotter acid.

   “Glass bottles of liquid LSD; moist blocks of Manali charras and Malana cream; sachets of smack; a hundred caps of MDMA and a phial of Australian DMT; ampoules of medical morphine and a dense pad of four thousand Californian blotters.”