look up any word, like cunt:
 
1.
When you stick your balls into a girls vagina, warming them up to a comfy temperature.
"dude did you hook up with that chick last night?"
"No, but she let me roast my marshmellows...it was kind of cool"

"I caught crabs from Roasting marshmellows with that Hooker"
by Big Petey May 10, 2009