Green’s Dictionary of Slang

an insignificant, lazy person.

1888		S.O. Addy Sheffield Gloss. 138: Lollop, an idle, easy, shiftless woman.
1891		in Punch 31 Oct. 205: B-LF-R vash but a ‘Bummer,’ / A loafing lollop-head.
1914		S. Lewis Our Mr Wrenn (1936) 60: Say, is it straight what they say, Pete, that you’re the guy that owns the Leyland Line and that’s why you know so much more than the rest of us poor lollops?