back-of-the-envelope


Also found in: Acronyms, Idioms.

back-of-the-envelope

adj
informal (of a plan, calculation, etc) composed or performed quickly and without detailed analysis or research
[C20: from the notion of something being hastily written on the back of an envelope in the absence of other writing materials ]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
It has helped the industry change its habits from "seat-of-the-pants, back-of-the-envelope" deal-making to the use of sophisticated, computer-assisted analytical techniques and due diligence studies that dominate transactions today.
In a back-of-the-envelope calculation, Nagourney estimates that the distance between the confined ion and atoms outside the loop is analogous to the distance between a person in Boston and one in Washington, D.C.
"It was a back-of-the-envelope mess," Knapp recalls.