He always tries to yuck up the party with his negative comments.

I don't like sushi, but I won't yuck someone's yum.

She yucked someone's yum by eating the last slice of pizza.

I can't believe you're eating that. Yucks someone's yum!

She is yucking someone's yum by criticizing their taste in music.

The food at that restaurant was so yucky.

This food is yuckier than the one I had yesterday.

This is the yuckiest food I have ever tasted.

I can't stand the yuckiness of this food.

She ate the spoiled food yuckily.