- Noddin' My Head in Agreement. When you completely agree with someone, usually in a blog or other social networking app.

The opposite of SMDH.
Bills new GF is o.k., but she get's touchy feely after a few drinks. She better keep her damned hands off my man tonight.

NMHIA!
by DYOPP! January 31, 2011
Get the NMHIA mug.