borrower
thrifty
call the police
The phrase "put your money where your mouth is" is often used to call someone's bluff. It basically means that someone talks a big talk but are they willing to make a bet on it.
Executive Director of Publishers Clearing House.
A Gold-Digger
One common term is a 'gold digger'.
biologist
patriot
Phylomath
Logophile
Patriot.
A boylover
A nerd
sellotapist
Aquaphile
A Lush.