1) Australian slang for beer 2) Body waste 3) Excrement 4) Excreta 5) Excretion 6) Excretory product 7) French word used in English 8) Go number 1 9) Piddle 10) Slang for to urinate 11) Slang for weak beer 12) Slang for nonsense 13) Urine 14) Water 15) Weewee 16) Word before drunk or poor Found on https://www.crosswordclues.com/clue/piss
Piss transitive verb & i. [ Middle English pissen , French pisser ; akin to Italian pisciare , D. & German pissen , Danish pisse , Icelandic pissa .] To discharge urine, to urinate. Shak. Found on http://www.encyclo.co.uk/webster/P/95
Piss: A vulgar but ancient word used both as a noun and verb: 1. (noun) Urine. 2. (verb) To urinate. Piss is descended from the Middle English pisse, from the Old French pissier, from the Latin pisiare. Found on http://www.medterms.com/script/main/art.asp?articlekey=40498