A sex act where midway through intercourse the male defecates into a sock and shoves it into the females mouth.
by [Nex] February 22, 2009
Brad: Yo, dude. Jackson has been such a cunt lately...how do I fix it?
Johan: Give him a marshmallow surprise
Brad: What's that?
Johan: Grab a pillow-case and a camera, this is going to be epic
Johan: Give him a marshmallow surprise
Brad: What's that?
Johan: Grab a pillow-case and a camera, this is going to be epic
by frootyloopyinthebooty June 09, 2016
"Do we have marshmallows for the campout tonight?"
"No, Kara took them all so she could make Marshmallow Surprise."
"No, Kara took them all so she could make Marshmallow Surprise."
by GS 882 August 24, 2008