Green’s Dictionary of Slang

feed one’s face v.

also fill one’s face

1. to eat, esp. to stuff oneself with food; thus face-feeding n., over-eating; face-feeder n., an (over-)eater.

[US]J.L. Williams Princeton Stories 39: In freshman year they say, ‘Are you ready to feed your face?’.
[US]‘Hugh McHugh’ You Can Search Me 61: ‘Will you feed the face, Dodey?’ ‘You betcha sweet!’ Dodie replied.
[Aus]Sun. Times (Perth) 7 June 4/7: O, grind the ten commandments out, / What time they feed a face.
[Aus]Bulletin (Sydney) 5 Aug. 47/1: ‘I was coming out of a Dago joint picking me teeth, when Big Thompson comes erlong an’ says, ‘Yer doing it well,’ says he. ‘Well,’ says I, ‘a man must feed ’is face sometimes.’.
[Aus]Sun. Times (Perth) 10 Dec. 95/2: An ornate prayer’s scarcely part of the game when the lusty bluenose fills his face.
[NZ]Truth (Wellington) 13 Oct. 1/7: Our Plute Parliamentarians [...] never tired of feeding their faces in Bellamy’s.
[US]W. Edge Main Stem 38: We asked our wobbly friend to feed his face with us.
[US]C. McKay Banjo 296: Ise got enough a them francs to blow fifty face-feeders with the few dollars I done change.
[US]G. Milburn ‘Gila Monster Route’ in Hobo’s Hornbook 159: Nothing in sight but sand and space; / No chance for a bo to feed his face.
[US]O. Strange Law O’ The Lariat 62: When yu boys have fed yore faces yu can start for home.
R. Mealand Let Me Do the Talking 86: You just want money to feed your face and pay for your women. All you care about is Gabriel.
[Aus]D. Niland Shiralee 131: Come on, mate, and feed your face.
[US]E. De Roo Big Rumble 100: He’ll feed his face and go see the dames.
[US]‘Hy Lit’ Hy Lit’s Unbelievable Dict. of Hip Words 9: Buttermilk-bottom had best cut down on his face feeding.
[UK]J. Rosenthal Spend, Spend, Spend Scene 4: My dad always fed his face off the mantelpiece. He said it was because he never knew where the chairs were.
[UK]Barltrop & Wolveridge Muvver Tongue 71: They’d been feeding their faces so much they could hardly move.
J. Severson Getting the Best Out of Your Juicer 2: Just cut into strips and feed the juicer, then feed your face.
R. Cox A Silent Struggle 111: All you ever do around here is feed your face, get drunk, and go to sleep.
[US]S. King Finders Keepers (2016) 147: He’d love to get some payback from the fat son of a bitch now feeding his face with fancy food.

2. to feed someone else.

[US](con. early 1930s) C. McKay Harlem Glory (1990) 46: To keep always in the white folks grace / [...] / You must know how to feed they face.

3. to indulge in oral intercourse.

[US]R. Klein Jailhouse Jargon and Street Sl. [unpub. ms.].
[UK]Solar Project ‘Zeitgest’ [lyrics] on Time [album] You sit on my face, I dine at your Y / Blow job, gob job, sixty-eight / You feed your face and eat my meat / My fist into your Dead End Street.