Len Bakerloo's definitions
An extremely politically correct variant of "person" introduced as an alternative to the use of "perdaughter" to appease women and because "person and/or perdaughter and/or other" is both cumbersome and offensive to the non-binary.
Person A: Honey, the postman just delivered the mail.
Perchild B: Two years ago we were told that the proper term is "postperson" because it was determined that the "postman" is offensive to women. Last year regulators realized that "person" is offencive to daughters so now must use "postperchild" otherwise we won't get any mail.
Person A: May I refer to him as Fred.
Perchild B: No. That is offensive to all people not named Fred.
Person A: But his name is Fred.
Perchild B: That's irrelevant. And, if you ever call me "honey" again I'm going to divorce you.
Perchild B: Two years ago we were told that the proper term is "postperson" because it was determined that the "postman" is offensive to women. Last year regulators realized that "person" is offencive to daughters so now must use "postperchild" otherwise we won't get any mail.
Person A: May I refer to him as Fred.
Perchild B: No. That is offensive to all people not named Fred.
Person A: But his name is Fred.
Perchild B: That's irrelevant. And, if you ever call me "honey" again I'm going to divorce you.
by Len Bakerloo January 8, 2019

When you cc all your friends on an email asking a simple question in the subject line and it sets off a mass of useless comments and comments on comments ad infinitum of no use in answering the question.
I asked Google "What does it mean to be an American" and Google's number one answer was an essay by a 10-year-old who doesn't know anything about citizenship and perhaps couldn't find the USA is on the globe, all because somebody who ran a contest for kids hired an SEO expert. So I sent an email to all my friends "How do we get Google to do its fucking job?" and that set off a chit-chat-storm, but nobody had a fucking idea of how to get Google to do its fucking job.
by Len Bakerloo December 7, 2019

In linear algebra, an n-by-n square matrix A is called invertible (also nonsingular or nondegenerate) if there exists an n-by-n square matrix B such that:
AB = BA = I (where I is the Identity Matrix).
Otherwise, in life, it refers to the case where something can be transformed into something else and transformed back.
AB = BA = I (where I is the Identity Matrix).
Otherwise, in life, it refers to the case where something can be transformed into something else and transformed back.
Randy: Sally is so invertible; real marriage material.
Sandy: I know, nonsingularly so. Put a few drinks in her and you can get her on her back and yet in the morning she still gets up and cooks you breakfast.
Sandy: I know, nonsingularly so. Put a few drinks in her and you can get her on her back and yet in the morning she still gets up and cooks you breakfast.
by Len Bakerloo July 6, 2016

Being given a name at birth (or adopting one later) that is not normally associated with the societally recognized gender you were born with (or choose later).
by Len Bakerloo December 16, 2018
