story
Similar examples: I painted it last night. (Painted a painting) I beat it last night. (Beat a game) I ran it last year. (Ran a marathon)
"Where's the chili?" "Oh, I ate it last night, sorry." (Ate the chili)
"Mmm, this chili is good, isn't it?" "Sure is, I had some last night." (Ate some of the chili)