A phrasal verb is a verb combined with a preposition or adverb that creates a new meaning different from the original verb. Phrasal verbs can be transitive, taking a direct object, or intransitive, not taking a direct object. Examples of intransitive phrasal verbs include "grew up", "will talk", and "jumping". Examples of transitive phrasal verbs include "came across" and "set up". Phrasal verbs can also be separable or inseparable, affecting the placement of the object.