Cow burger

A) A burger but made with cow instead of beef (Noun)
B) When a trumpet player starts playing marches of the armed forces during science class

Oh god, he's pulling a cow burger!
Can I have a milkshake, fries, and a cow burger?

Big Carl

A) A tuba but bigger
B) Weight-loss company
C) A car that won't fit in my garage
D) That baby that's always crying on the airplane.

Me and my brother play the Big Carl for our school band.