p.o.s.h. 

A popular definition seems to be that P.O.S.H was printed on tickets for P&O cruise ships in the early 20th century leaving India. These tickets were for the more desirable rooms which put you on the Port side going out and the Starboard side returning home as it kept you out of the sun and kept the room cool.

However, no tickets have ever been found which had P.O.S.H on the ticket.

Sources:
www.wikipedia.org
www.askoxford.com www.phrases.org.uk

I suggest that the mistake has been made from the full name of the Cruise Liner: Peninsular and Oriental Steam Navigation Company. Maybe a printing error produced P.O.S.H rather than P.O.S.N.C

A more factual defintion still derives from a shipping term which does not seem to be suggested on the previous source sites.

When boats leave a harbour the shipping lanes work to the rule that you must stay to the left hand side like on U.K roads. When leaving a harbour you therefore keep the Port lights of the shipping lane on the left and the Starboard on the right. However, when returning you keep the starboard lights on the left and the Port lights on the right. Hence Port Out Starboard Home... P.O.S.H

Salcombe Harbour uses this Port Out Starboard Home or p.o.s.h. principle.

p.o.s.h. by Raberto September 8, 2008

P.O.S.H. 

stands for Piece Of Shit Hoebag

Kyle: Hey, Melvyn, isn't that Kayleigh?
Melvyn: Oh, P.O.S.H.? Yeah, that bitch is such a cockblock...

P.O.S.H. by ProstiTot October 29, 2008

S.H.P.O.S. 

Designation as a Sub-Human Piece Of Shit, applied by medical personnel in hospitals to their less-than-desirable patients.

In an article published in Values, Ethics, and Health Care, 5 (1980), pp. 226-228, Harold Schwartz attests that S.H.P.O.S. is "an acronym for 'subhuman piece of shit' applied by medical interns and residents to their most unpleasant and uncooperative patients."

S.H.P.O.S. by Michael Zeleny January 27, 2008

Y.D.A.N.-Y.F.W.T.W.P.A.Y.L.W.C.D.U.A.W.I.K.A.A.G.I.W.G.E.U.D.G.T.F.M.P.A.W.A.L.I.A.A.P.O.S.A.Y.T.Y.S.S.B.I.R.Y.A.S.A.H.M.F 

Y.D.A.N.-Y.F.W.T.W.P.A.Y.L.W.C.D.U.A.W.I.K.A.A.G.I.W.G.E.U.D.G.T.F.M.P.A.W.A.L.I.A.A.P.O.S.A.Y.T.Y.S.S.B.I.R.Y.A.S.A.H.M.F

Y.D.A.N.-Y.F.W.T.W.P.A.Y.L.W.C.D.U.A.W.I.K.A.A.G.I.W.G.E.U.D.G.T.F.M.P.A.W.A.L.I.A.A.P.O.S.A.Y.T.Y.S.S.B.I.R.Y.A.S.A.H.M.F

Y.D.A.N.-Y.F.W.T.W.P.A.Y.L.W.C.D.U.A.W.I.K.A.A.G.I.W.G.E.U.D.G.T.F.M.P.A.W.A.L.I.A.A.P.O.S.A.Y.T.Y.S.S.B.I.R.Y.A.S.A.H.M.F by lotto6969 July 9, 2025

D.Y.G.I.I.L.Y.I.A.H.S.P.J.T.O.S 

From She-ra and the Princesses of Power
Season 5 Ep. 13, The Heart Part 2

"Don't you get it? I love you. I always have. So, please, just this once... stay." - Catra Applesauce Meowmeow

"Do you know what 'D.Y.G.I.I.L.Y.I.A.H.S.P.J.T.O.S.' means?"

D.Y.G.I.I.L.Y.I.A.H.S.P.J.T.O.S by beep..boop..bop January 12, 2021

P.O.P.A.S.D.A.H 

Acrnoynm for Penial Organ Penetration with the Anus Splitting Dick in the Asshole. In other words, phrase for fucking something in the ass with a gigantic fucking dick.

Wow, I really gave her the P.O.P.A.S.D.A.H last night

P.O.P.A.S.D.A.H by Bobby and Burleson May 29, 2004

This text has been found in violation of H.R 3261, S.O.P.A and has been removed. 

S.O.P.A stands for Stop Online Piracy Act. It was a bill introduced in October of 2011 to prevent piracy, copyright infringement, and the trafficking of counterfeit goods online. S.O.P.A was very controversial, as many accused it of limiting free speech.

I don’t know why you would need to know about this, but you can find it in a high-ranked definition of America, so hey, context!

Someone: Hey, what’s this “ This text has been found in violation of H.R 3261, S.O.P.A and has been removed. ” on the definition of America mean?
Nerd: It’s a bill passed to prevent illegal activity online.

Someone: You’re a nerd, stfu.

This text has been found in violation of H.R 3261, S.O.P.A and has been removed. by BraindeadConsumer69 January 10, 2022