Search Result for "gazump": 
Wordnet 3.0

VERB (2)

1. rip off; ask an unreasonable price;
[syn: overcharge, soak, surcharge, gazump, fleece, plume, pluck, rob, hook]

2. raise the price of something after agreeing on a lower price; 



WordNet (r) 3.0 (2006):

gazump
    v 1: rip off; ask an unreasonable price [syn: overcharge,
         soak, surcharge, gazump, fleece, plume, pluck,
         rob, hook] [ant: undercharge]
    2: raise the price of something after agreeing on a lower price