copus

noun2

1. •
   (slang, no longer used) A drink of ale mixed with spices, and varied by spirits, wines, etc.

   • We beg you would not stand fiddling about it, but be married forthwith, and then take chaise, and come […] all the way to Cambridge […] for our copuses and Welsh rabbits are impatient for you. — 1855
2. •
   (slang, no longer used) A mug.