Longman Dictionary of Contemporary English
Douglas Harper's Etymology Dictionary
1853 in literal sense, from pox + -y (2). As a deprecatory adjective, attested in English dialects by 1899.
Wiktionary
a. 1 (context medicine English) suffering from pox 2 sickening; unsatisfactory; generally bad
Wikipedia
<!-- A long comment added to the page to prevent it being listed on Special:Shortpages. Generated via Template:Longcomment.
Usage examples of "poxy".
Captain Devil and taken his name like the cozening lying whoreson poxy Frogs ye are!
With his captain magicked away into a beast of the forest and doxies shaking their poxy flanks at him!
Spital-fields blindfolded, and in so doing utterly negating his badinage about lost channels and collisions with lighters with which he had wheedled from me two poxy shillings.
We traveled wearing our tabards, but at our last lodging in Essex I dressed myself in my black and gold suit and put powder on my face, it still appearing rather poxy with some measle encrustations upon it.
I snarled back at some of the poxy faces glowering down at me and gave thanks to God that I took after Father for my looks rather than the Fonteyn men.
Did I ask them to sit in some poxy cubicle and answer phone call after phone call all day, reading from a script prepared by Bob Lipinski, Senior VP Customer Relations, over in Albuquerque?
Still, my own fault for stopping for him in the first place, so I bang on the meter and go for a u-turn at the hospice, which is no easy thing on that poxy road with constant traffic coming at you from every direction.
Your man seemed sound enough, so I initiated conversation as I negotiated the poxy ramps on Wellington Lane.
Oldcourt now, which was a pain in the arse as it meant either snailing back up through the poxy village or hitting the motorway and getting snarled up in the mile long tailback of traffic taking the Killarney Bridge exit.
Cursing myself for stopping, and then him for living in poxy Castleknock, I let out a first rate sigh, regretfully made a world-weary U-turn and proceeded to inch my way along the green and then onto Cuffe Street, Kevin Street, Bride Street, Bride Road, Nicholas Street, High Street, Bridge Street Upper and bloody Bridge Street Lower before I could get finally into a bloody bus lane.
Dinner hour was sixty poxy minutes, and the Number One bus to Leith and Ards record shop took fifteen minutes there and the same back.
They were more in need of a feed than a broken-down tart, robbing their families of what little they had to boast of fornication with a poxy English whore.
Nonetheless, it is nothing less than a threat, a firm promise that if I do the most honorable thing and attack this foxy, poxy Aonghus Mac Dhomhnuill, this aging byblow outcome of the unnatural coupling of a tusked seal and a perverted, udderless cow, then I will certainly stand to be invaded by the combined forces of both Scotland and England-Wales.
I want to get this pocket kingdom into a shape that will please both its people and Brian and then get me and mine back to Italy, first to collect the monies still due us, then to get to work driving the poxy Spaniards and Moors and their hirelings out of my native land.
They have Callie Road, the fucking main pubs, the fucking docks and all the poxy local boozers.