nanty-narking
Great fun; roaring good times, especially tavern revelry.
“We had nanty-narking at the Eagle last night — singing, porter, and no thought of the morrow.”
Note: Ware's Passing English of the Victorian Era (1909): ‘Nanty narking (Tavern, 1800 on to 1840). Great fun. (See Egan's Life in London.)’ Hotten records the cant ‘nantee’ (none, nothing) as its root.