Phrasal verbs are two or more words that together act as a completely new verb with a meaning separate from those of the original words.
spice something up
Meaning / Example:
1. to make some food or drink more spicy. > Judy spiced the cider up by adding cinnamon and nutmeg. > She spiced up the chili too much.
2. to make something more interesting, lively, or sexy. > I'm afraid that the nude scenes spiced the musical up too much. Some people walked out. > Judy liked to spice her lectures up by telling jokes. > She spiced up each lecture with a joke.