Green’s Dictionary of Slang

butterface n.

[i.e. but her face]

(US black) a female whose body is very attractive, but who has an unattractive face.

[US]College Sl. Research Project (Cal. State Poly. Uni., Pomona) 🌐 Butta Face (noun) Once you see a nice honey with an ugly face you would say: ‘Damn know that girl gotta Butta Face, EVERYTHING IS GOOD, BUT HER FACE’.
[US]Hope College ‘Dict. of New Terms’ 🌐 butterface n. Derived from a phonologically related prepositional phrase. ‘She/he’s a butterface’ meaning ‘Everything looks good but his/her face.’.
[US]Ebonics Primer at www.dolemite.com 🌐 butterface Definition: when a girl has a bonerific body, but then a face that would make Mother Theresa cry for mercy. Example: Damn homey, I wanna bang every part of that girl butterface.
OnLine Dict. of Playground Sl. 🌐 butter face adj. Girl with a gorgeous body and ugly face. used as in ‘She’s got a nice body – butter face...’.
[US]Eble Campus Sl. Apr.