How some people say or write (and spell} the phrase, "pissing match".
A pissing match is loosely defined as two or more people arguing (and quite vehemently so) over some piss ant, petty, insignificant matter.
{Police officer}: So, what's going on Megan?
{Megan} Drake & Josh are having a uranating contest over who destroyed my treehouse with their model rocket. Drake says he didn't do it because he knows nothing about model rocketry -- he pronounces the word, "fuselage" as, "fyoo SELL' a jee", and Josh says he didn't do it because he's a brainiac and set the rocket's course with deadly precision.