Pimm's is a brand of fruit cup first made in 1823 by James Pimm.

Pimm sold his gin-based tonic with its secret blend of herbs and liquors in a small tankard commonly known as the "No. 1 Cup" out of his oyster bar in the City of London. The drink was marketed to help with digestion.

Pimm's is most popular in England and has a highbrow image as it's one of the primary drinks served at events such as Wimbledon, polo matches, and the Henley Royal Regatta.

The term "It's Pimm's O'Clock!" was made famous by a 2003 ad campaign.

1 part Pimm's No. 1 Liqueur
1/2 oz. (or so) of Gin
1 part Ginger Ale (or lemonade)
Sliced cucumbers (or fruit of choice)
Ice
Stir gently

Toots's Pimm's Cup is made using Tanqueray gin and Thomas Kemper ginger ale. It's served in a low ball glass with crushed ice and cucumbers.

A Pimm's Cup is mixed with lemonade or ginger ale and is accompanied by fresh fruits, commonly oranges, cherries, strawberries or cucumbers.

Mixing a Pimm's Cup with champagne instead of lemonade or ginger ale is called a Pimm's Royal Cup.