Definitions by Martin Milner
TISNF
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).
TISNF by Martin Milner May 27, 2007