The act of placing M&M's, Reese's Pieces, Skittles, or any other candy inside a woman's vagina and then smearing peanut butter all over your penis before repeatedly penetrating her to remove all the previously inserted candies. You then say "Eat my Bits n' Pieces!" and she will begin giving you head with all the candy and peanut butter on your dick. When she complains that there is too much peanut butter in her mouth you exclaim "Get used to it, bitch!"
For extra points, you then say "You got punk'd!" Then while she is dazed and looking for Ashton Kutcher, steal her car and drive somewhere then shit on the windshield and walk back to your place. Bonus points.
Dude, that girl was totally into giving me Bits n' Pieces, but once I went for bonus points she got pissed. Good thing I shat on her windshield.