The act of placing large amounts of skittles in someones's front yard, arranging it into the shape of male genitilia, and then spraying the area with their own water. After the rainbow colors soak into the grass, they will now be the proud owner of a rainbow colored penis, displayed vividly in their lawn
Trevor was such an asshole, that we had a little skittle dicking adventure in his yard the other night, taste the rainbow bitch!
When you strategically place Skittles under your foreskin prior to a good blow job session so the female (or male if you're into that) gets a good mouthful of Skittles while going down on you.
Brenda: "I spat the rainbow this morning!"
Kent: "You were totally Skittle dicking Stephen last night!"