Green’s Dictionary of Slang

‘a lazy, idle drone’ (B.E.).

1661		A. Wood Life of Anthony à Wood I (1772) 162: They knew him to have been the very Lol-poop of the University, the common subject of every Lampoon.
1673		T. Shadwell Epsom Wells II i: Where’s Mr. Rains, you Lolpoop? do you think you shall go, and he not here?
c.1698		B.E. Dict. Canting Crew n.p.: Lolpoop, a Lazy, Idle Drone.
1725		New Canting Dict. [as cit. c.1698].
1737, 1759, 1760, 1776		Bailey Universal Etym. Eng. Dict. [as cit. c.1698].
1761		Newcastle Courant 6 June 2/3: A New Pantomime Entertainment called Harlequin Salamander [...] The Character of [...] Lolpoop, (the Clown) Mr Achurch.
1785, 1788, 1796		Grose Classical Dict. of the Vulgar Tongue n.p.: Lollpoop. a lazy idle drone.
1811		Lex. Balatronicum [as cit. 1785].
1823		Egan Grose’s Classical Dict. of the Vulgar Tongue [as cit. 1785].
1834		‘Jack Downing’ Andrew Jackson 92: [He] compelled every mountybank, and elbow-shaker, frezier, bully-trap, and janizary, lolly-poop, sea-crab, caper merchant. Badger, Dandy-pratt, and Fidlam-ben [...] tu muster in his army.