when you help with something, especially money
chip in
promise
word of honor
a valueless feature
gimmick
under too much money that you owe
drowning in debt
just can't help buying things
spendthrift/big spender
someone who managers money well
thrifty
someone who doesn't like to spend money
cheapskate/tightwad
paying, often reluctantly
shell out
something bought without thought
impulse item
someone cannot afford something
out of someone's budget
done because it's the right thing
matter of principle
keep it for when you really need it
save for a rainy day
out of this world
astronomical
each month's salary comes, then goes
live paycheck to paycheck
