Words similar to back-of-the-envelope

Example sentences for: back-of-the-envelope

How can you use “back-of-the-envelope” in a sentence? Here are some example sentences to help you improve your vocabulary:

In "Pay Scales in Black and White," Steven E. Landsburg's back-of-the-envelope "proof" that discrimination doesn't exist (in any serious form) runs up against the hard fact that research shows it to exist.