What (who) is biscuit-mouth - definition

BRAND OF SWEET BISCUIT-BASED SNACK FOOD

Wagon Wheels (biscuit); Wagon Wheels (Biscuit); Wagon Wheel (biscuit)

biscuit-mouth

The unpleasant condition caused by eating too many biscuits (especially Ginger Nuts) in one sitting.
Quick, I need tea to treat this biscuit-mouth!

Biscuit (bread)

NORTH AMERICAN QUICK BREAD (NOT THE SAME AS A COOKIE)

Buttermilk Biscuits; Buttermilk biscuit; Cat head biscuit; Baking powder biscuit; American biscuit; Biscuit (North America)

In the United States and Canada, a biscuit is a variety of baked bread with a firm, dry exterior and a soft, crumbly interior. It is made with baking powder as a chemical leavening agent rather than yeast, and at times is called baking powder biscuit to differentiate it from other types.

https://en.wikipedia.org/wiki/Biscuit_(bread)

Empire biscuit

SWEET BISCUIT (UK ENGLISH), COMPRISED OF 2 SHORTBREAD BISCUITS, WITH JAM FILLING BETWEEN THEM, TOPPED BY ICING AND A CANDIED FRUIT, TYPICALLY CHERRY. FOUND PRIMARILY IN COMMONWEALTH NATIONS, AND PARTICULARLY POPULAR IN SCOTLAND AND NORTHERN IRELAND

Empire biscuits; German biscuit; Belgian biscuit; Empire cookie

An Empire biscuit (Imperial biscuit, Imperial cookie, double biscuit, German biscuit, Belgian biscuit, double shortbread, Empire cookie or biscuit bun) is a sweet biscuit eaten in Scotland, and other Commonwealth countries. It is popular in Northern Ireland, and it is an iconic dish in Winnipeg,

https://en.wikipedia.org/wiki/Empire_biscuit

Wikipedia

Wagon Wheels

Wagon Wheels are a sweet snack food sold in the United Kingdom, Commonwealth countries like Australia, Canada, New Zealand and India. They are also sold in Ireland. They consist of two biscuits that form a sandwich with a marshmallow filling with jam, and they are covered with a chocolate-flavoured coating.

Wagon Wheels were invented by William Peschardt, who sold the patent to Garry Weston, son of W. Garfield Weston. Garry Weston worked for his father's business in Australia before taking over his family's business in Sheffield, England. He placed two Marie biscuits around a marshmallow filling and covered it with chocolate. They were introduced in 1948. The name (originally "Weston Wagon Wheels") relates to the shape of the biscuits and capitalised on the Wild West, which was popular in mass media at the time.

https://en.wikipedia.org/wiki/Wagon Wheels