From Wiktionary, the free dictionary
legal pad (plural legal pads)
- A large writing pad, made using yellow paper, especially one measuring 8½ by 14 inches and with a margin down the side of each page.
2023 October 5, Victoria Bekiempis, “FTX co-founder testifies he committed crimes with Sam Bankman-Fried”, in The Guardian[1], →ISSN:His mother and father, both Stanford Law professors, took turns scribbling notes on a yellow legal pad.