If you describe someone as a loan shark, you disapprove of them because they lend money to people and charge them very high rates of interest on the loan.
[informal, disapproval]
loan shark in British English
noun
informal
a person who lends funds at illegal or exorbitant rates of interest
loan shark in American English
US
Informal
a person who lends money at exorbitant or illegal rates of interest
Examples of 'loan shark' in a sentence
loan shark
The whole episode confirms all your prejudices about payday loan sharks.
Times, Sunday Times (2014)
But that could shut down short-term loans and force people towards illegal loan sharks or other extreme measures.
The Sun (2013)
WHEN are the Government going to act over payday loan sharks?
The Sun (2012)
I also get money from local loan sharks, but they have higher interest.
The Sun (2011)
He seems better - until a run-in with the loan sharks makes him anxious again.
The Sun (2012)
VICTIMS of a vicious loan shark who charged interest of up to 2,500 per cent are to have their debts written off.
The Sun (2009)
THE FSA investigation into payday loan sharks is long overdue.