(NSFYM) Not Safe for Your Mom

A word, phrase or thought that is likely to embarrass, fluster or even cause a mother to cry

Ed: I want to post to Twitter, but your mom follows me and this comment is definitely NSFYM.

Andy: NSFYM? And why does my mom follow you?

Ed: Yeah, (NSFYM) Not Safe for Your Mom. And, um, can you repeat the second question...

(NSFYM) Not Safe for Your Mom by anythingoncemaybetwice February 28, 2012