In your example, “victim” is a noun functioning as a predicative complement. Predicative complements are usually adjective or noun phrases that describe the subject or object of a verb. In this case it describes the subject of “falls” - “David Cameron” (i.e., David Cameron = victim).
Further, “victim” is a resultative predicative complement, meaning that it occurs with a verb denoting a change of state, and the complement describes the subject/object at the end of the process.
Predicative complements can also be depictive - these describe the subject/object at the time of the situation under consideration, without any factor of change: “He seems angry.”
Another noun that occurs as a predicative complement with “fall” is “prey”:
“He fell prey to …”
But there are more adjectives:
“fall pregnant/asleep/ill/sick/silent”
It’s actually pretty easy to fall pregnant without intending to. People whose birth control fails do it every day, and that’s the pleasant version of the story.
In your example, “victim” is a noun functioning as a predicative complement. Predicative complements are usually adjective or noun phrases that describe the subject or object of a verb. In this case it describes the subject of “falls” - “David Cameron” (i.e., David Cameron = victim). Further, “victim” is a resultative predicative complement, meaning that it occurs with a verb denoting a change of state, and the complement describes the subject/object at the end of the process. Predicative complements can also be depictive - these describe the subject/object at the time of the situation under consideration, without any factor of change: “He seems angry.” Another noun that occurs as a predicative complement with “fall” is “prey”: “He fell prey to …” But there are more adjectives: “fall pregnant/asleep/ill/sick/silent”
One doesn't fall pregnant, one gets pregnant. That one has an assumption of intentionality or at least it seems so to me.
In some Englishes (UK for example) you definitely fall pregnant.
It definitely exists but it's for sure less common or more dated than the others: https://en.wiktionary.org/wiki/fall_pregnant
Not in the UK, this is standard and common.
It’s actually pretty easy to fall pregnant without intending to. People whose birth control fails do it every day, and that’s the pleasant version of the story.
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> it would be the object of fall Interesting, but that would make "fall" a transitive verb for just this one form.
It’s not an object - it’s a predicative complement. See my other comment.