shoo-in
shoo-in {n.}, {informal}
Someone or something that is expected to win; a favorite; sure winner.
Chris is a shoo-in to win a scholarship.
Do you think he will win the election? He's a shoo-in.
This horse is a shoo-in. He can't miss winning.
Syn.: SURE THING (1).
Categories:
Source: A Dictionary of American Idioms