A verb combined with an adverb or a preposition, or sometimes both, to give a new meaning.
bust someone out of some place and bust someone out
Meaning / Example:
1. Sl. to help someone escape from prison. (Bust is a nonstandard form of burst meaning ‘break' here.)
> Lefty did not manage to bust Max out of prison.
2. Sl. to expel or force someone to withdraw from school. (Bust is a nonstandard form of burst meaning ‘break' here.)
> The dean finally busted Bill out of school.
Phrasal verbs, also called two-word verbs, are idiomatic expressions wherein the second element of the verb (the adverb or particle) is not necessarily predictable.
A compilation of 50 phrasal verbs.