overindulge

(verb) overeat or eat immodestly; make a pig of oneself. Synonyms: gorge, ingurgitate, glut, englut, stuff, engorge, overgorge, overeat, gormandize, gormandise, gourmandize, binge, pig out, satiate, scarf out. Examples: "She stuffed herself at the dinner." "The kids binged on ice cream."