When entering an establishment where the majority of the patrons are of retirement age, one can covertly refer to this as the Old Folks Home in code "OFH" without offending the patrons. This can be very useful in describing an eating establishment which has excellent "home" cooking which the old folks flock to like a pig to shit. Restaurant names typically have a name like "Family Restaurant" or "Home Dining" and don't qualify unless they have a daily special.
Cell phone coversation to friend who is on the way to the OFH while you already seated at the table: "Yo Tim I'm at the OFH, shall I order the special of the day for you (liver and onions)".
OFH - Open Faced Helmet as worn by a Mod
The Mod was wearing an OFH before he came off and had his chin scraped off the tarmac.