The act of inserting a chocolate item such as a Creme Egg or Malteser into a woman's vagina, then letting it melt a bit and licking out the contents. Very pleasureable act for both partners.
Kesh just performed chocopussylingus and gave Sue an amazing orgasm by licking a melted chocolate from her pussy. His face was covered in chocolate and cum.
Projectile or even explosive rectal ejection. Possibly resulting in a pink sock from exertion.
It's not a true chocoshotgun unless the blast spray is fine and well dispersed, potentially with remnants of your last meal. This is usually done against surfaces or in the corner of an alley.
Kevin couldn't contain himself anymore he was forced to unload the entire chamber of the chocoshotgun on the wall. All he had to say for himself was "now I have room for bdubs!"
Simply put, it is a lust for chocolate.
It's that overwhelming desire to indulge in the creamy richness of a gourmet bar of the most delicious chocolate you have ever known.