In the OED, Bill Murray is credited with the first recorded proleptic usage of the word “toast”. From the OED:
The lines in quot. 1983 do not in fact appear in the U.S. film Ghostbusters as released in 1985, since a considerable amount of the dialogue is ad-libbed. The actual words spoken by Venkman (played by Bill Murray) as he prepares to fire a laser-type weapon, are, ‘This chick is toast’; this is probably the origin of the proleptic construction which has gained particular currency.
- 1983 > Venkman…: “Okay. That’s it! I’m gonna turn this guy into toast.”
D. Aykroyd & H. Ramis, Ghostbusters (film script, third draft) 123