[piss] vb [ME, fr. OF pissier, fr. (assumed) VL pissiare, of imit. origin] vi (14c): urinate--sometimes considered vulgar ~ vt: to urinate in or on--sometimes considered vulgar
[2]piss n (14c) 1: urine--sometimes considered vulgar
2: an act of urinating--often used with take--sometimes considered vulgar