look up any word, like ratchet:
 
1.
To arse around/about.
To act the fool/stupid
Stop pisstrumpeting around.
What are you pisstrumpeting about at?
by DoctorDark January 16, 2009
 
2.
A deep blast of a fart sounded while at the urinal.

See urinal fart.
I just sounded the piss trumpet while taking a quick piss.
by e_let October 14, 2009
 
3.
a dope electronic synth for dubstep
yo did you hear that piss trumpet in that dubstep song?
by The Gun 88 April 15, 2012