pish, n. — Green’s Dictionary of Slang

pish n.

[SE pish! expressing disgust or impatience; plus var. on piss n. (4)]

1. rubbish, nonsense.

1998		I. Welsh Filth 227: The telly is fuckin pish as usual.
2000		T. Udo Vatican Bloodbath 66: ‘We, as prodisents, don’t believe any of that shite.’ ‘Aye,’ said one of the gang members. ‘It’s pish.’.
2012		J. Fagan Panopticon (2013) 129: He blows another one [i.e. a smoke ring] but it’s totally pish.
2020		G. Armstrong Young Team 11: ‘Yir talkin pish, mate’.

2. (Irish/Scot.) a var. on piss n. in various senses.

1993		I. Welsh Trainspotting 6: ‘Chancey’s awright.’ ‘No if ye take the pish oot ay his brar.’.
2009		L. McIlvanney All the Colours 89: [The] stink of slops and stale baccy, pish, disinfectant.
2017		A. Parks Bloody January 4: ‘“The use of surnames is demeaning and depersonalising and must be phased out,”’ he recited in a posh voice. ‘Load of fucking pish’.
2020		A. Parks Bobby March Will Live Forever 139: No way was he buying his ‘I know nothing, I just run a pub’ pish’.

pishy (adj.)

1. second-rate.

2013

T. Black Ringer [ebook] As usual the whole street’s chocka with all the pishy motors the roasters drive down this way.

2. (Scot.) wet, as in rainfall.

2020

G. Armstrong Young Team 4: Rainy, pishy days like thisl.

3. (Scot.) urine soaked; smelling of urine.

2020

G. Armstrong Young Team 38: Eld pishy drunks [...] standin outside [i.e. the pub] smokin.