This is a rousing song for the room!  It supposedly dates to about 1739, but appears in broadside ballads sheets right at the turn of the 19th century when George III was still on the throne of Great Britain along with his Queen Charlotte.  The verses are each a toast separated by the chorus.  A later version is in print during the reign of George IV, and still a later version appears in the form of a hunt song.

Jos. Morneault

Pass the good old bumper ’round and never count the score
Drink the good old liquor down and boldly ask for more

Chorus :
For ’tis he who will not merry, merry be
Shall never taste of joy,
See, see, the Cape’s in view
And forward, my brave boy.

Here’s a health unto our majesty, and long may he reign,
King of all the seven seas and the pride of the Spanish main.

But one thing more I’ll ask of you before we count the score:
Give to me the girl I love and the key to the cellar door

Once more unto her majesty then let the health go ’round
Confusion to his enemies wherever they are found