1. Having a face tattooed on one's butt.
2. Having a pair of eyes on one or more butt-cheeks that when seen with the butt crack looks like a face.
3. Wrinkly or saggy butt that resembles a face.
1. Person: "I'm getting a facebutt tatoo of my girlfriend for Valentines Day to show how much I love her. "Other person:"AWWW that's so romantic."
2. Hey, check out my facebutt! I got it at the facebutt painting booth!
3. One time I walked in on my grandparents while they were naked and I saw their facebutts.
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