builder's mug

noun2

1. •
   (UK) A large ceramic mug for hot drinks.

   • I glugged tea from a builder's mug. — 2011
2. •
   (UK, informal) A unit of volumetric measure equivalent to the typical builder's mug, around 1/2-pint (10 oz.; 300 cc; 300 mL; 30 cL; 1 cup)

   • One standard builder's mug will feed 1 adult and 2 littles. Switch up the carrot for grated apple with a small handful of raisins for apple pie porridge. — 2020