Phrasal verbs are multi-word verbs that, like single-word verbs, convey action of the body or mind or occurrences. Phrasal verbs consist of a basic verb + another word or words, usually a preposition or adverb. Example: speak (basic verb) + up (preposition)
Phrasal Verb:
slap something down
Meaning:
to strike downward with something flat in one's hand.
Example:
She slapped the dollar bill down in great anger and took her paper cup full of water away with her.