cafetorium

[ kaf-i-tawr-ee-uh m, -tohr- ]
/ ˌkæf ɪˈtɔr i əm, -ˈtoʊr- /

noun

a large room, especially in a school, that functions both as a cafeteria and an auditorium.

Origin of cafetorium

1950–55; blend of cafeteria and auditorium
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019