My brain is a scary place sometimes

"Dean, are you humming?" Sam hissed, crouching down behind the pillar.  Underneath the noise of destruction coming from their latest hunt, he could hear the faint sounds of Dean humming under his breath.

Dean grunted and ducked further down, hurriedly shoving salt into the shotgun.  "I can't get it out of my head!" he responded.  "I love the thrilling hunt, I love the something-something...boomdiada, boomdiada..."

He paused and grinned over at his brother.  "Oh hey, you know what rhymes with hunt, right?"

"Go after the big monster with big sharp teeth, Dean, and stop being disgusting."  As they started moving towards their goal, Sam sighed and resisted facepalming.  Barely.  "Son of a bitch.  ...boomdiada, boomdiada..."