gazump
verb
[ ɡəˈzʌmp ]
• make a higher offer for a house than (someone whose offer has already been accepted by the seller) and thus succeed in acquiring the property.
• "the trio are fuming after they were gazumped by a property speculator"
• swindle (someone).
• "I gazumped a friend of mine with complete success last night"
Origin:
1920s (in gazump (sense 2)): from Yiddish gezumph ‘overcharge’. gazump (sense 1) dates from the 1970s.