make a fast buck
To make money quickly and/or without effort, often through dishonest, unscrupulous, or ethically dubious means. The people hawking T-shirts commemorating the tragedy are just looking to make a fast buck.
make a quick buck
To make money quickly and/or without effort, often through dishonest, unscrupulous, or ethically dubious means. The people hawking T-shirts commemorating the tragedy are just looking to make a quick buck.