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1. To add some ingredient to food or drink in order to make it spicier. In this usage, a noun or pronoun can be used between "spice" and "up." Some red chilis would really help spice up this pasta. I like to spice my eggs up with hot sauce.
2. To make something more interesting, exciting, tantalizing, or sexy. In this usage, a noun or pronoun can be used between "spice" and "up." Please refrain from spicing up your reports with such colorful language—stick to the facts, if you don't mind. Why don't we spice the trip up a little with some skydiving? When you've been married for this long, you start having to find creative ways to spice up your sex life.
spice something up
1. Lit. 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. Fig. 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. They spiced up the play too much.
1. To make something spicy or spicier: The cook spiced up the chili with some peppers. I added some pepper to the sauce in order to spice it up.
2. To make something exciting or more exciting: We spiced up the party by playing some games. That necklace really spices your outfit up.