The Collaborative International Dictionary of English v.0.48:
Lollop \Lol"lop\, v. i. [From Loll.] To move heavily; to lounge or idle; to loll. [Low.] --Charles Reade. [1913 Webster]WordNet (r) 3.0 (2006):
lollop v 1: walk clumsily and with a bounce