"dude, last night jessie let me do milk and cookies. I was suckin on her tits so hard it fucking made them red, while she was shoving my dick right up her ass"
"your one lucky mother fucker"
Having a Milk enema, then expelling the milk, with the chunks of shit, over someones body. Thus looking like a stream of milk filled with Soggy cookie chunks.
"Squat right here baby, oh yea, give me those milk and cookies right here here on my chest."
When a male and female are in a romantic relationship, and the male defecates in a glass of milk (non-fat, 2%, or whole milk), giving it to her without telling her or implying that there is fecal matter submerged within.
"Dude, I totally gave that bitch a Milk and Cookies!" "No way man! did she barf the turd out?"