1 definition by Martin Milner
That is so not fair! One of many acronyms that have been created by the IM age (instant messaging) that we live in.
q.v. NBD (no big deal) and BFF (best friends forever).
q.v. NBD (no big deal) and BFF (best friends forever).
TISNF, Mom | Dad (When confining kid to bedroom or preventing him from playing a computer game, for example).
by Martin Milner May 11, 2007