The act of sticking a mars
bar into ones vagina/
anus/any other inappropriate cavity of the body besides the
mouth, then eating it.
1. HER: "Hey you have a bit of chocolate in your teeth"
HIM: "Oh,
yeah, I was just marsing my girlfriend."
2. HIM: "
Wow, your vag tastes like mars
bar."
HER: "Yeah, that would be because I was recently marsed."