megatog

mega- (“million”) +‎ tog (a unit of thermal resistance: “a 0·1°C temperature difference between the two surfaces of a material when the flow of heat is equal to 1W/m²”)

• (UK) enPR: mĕʹgətŏg, IPA^(key): /ˈmɛɡətɒɡ/

megatog (plural megatogs)

1. (rare, chiefly used attributively and to humorously hyperbolic effect) One million togs.
   • 1992, Susan Roaf, Mary Hancock, editors, Energy Efficient Building: A Design Guide, Halsted Press, →ISBN, page 7, →ISBN:

     [Discomfort] can also [arise] if a building is maintained at an unexpected temperature such as when a hotel bedroom is much warmer than home, and they provide a megatog duvet which can result in a sweaty night.