Noun

1. notice of the termination of employment

   After 20 years of dedicated service to the firm, they simply handed him a pink slip one day.

2. (U.S.) the title for an automobile (source is most likely from California, where the title is printed on a smaller index-card sized piece of pink paper, as opposed to most other states where the title is typically a full-size 8 1/2" x 11" sheet, usually printed on blue or blue-green paper with borders, similar to a stock certificate)
3. (New South Wales) an automobile roadworthiness inspection certificate

Related terms

• green slip
• P45 - UK and Irish equivalent for termination of employment.