milksop

noun

Plural: milksops

1. A meal consisting of bread pieces soaked in milk.

2. A man or boy who is not brave; a feeble or weak person; coward; softy; wimp; someone not assertive.

Examples:

Bruno prehardened his mind not to be frightened like some kind of cowardly milksop. After all, he had endured an encounter with a luminous phantom in an eldritch old cellar last month. And he also heroically overcame his own kidnapping! (Source: J∙ Okram - The Mystery of the Rammed Key.)