Definitions by Hsdfdfghfadfdf

tromphonium 

Take off the slide of a trombone, put a mouthpeice into the hole where the slide goes. TAADADADAA!!!!!!!!!

Resembles a euphonium/alto horn when bell points backwards

Trombonist: I was so bored at band camp i played tromphonium

All other band members: (shiftty eys) Yes, indeed...????~~!!!

Drummers: huh?

tromphonium by Hsdfdfghfadfdf April 28, 2007