pucker something up
to cause something to wrinkle up, especially the edges of the mouth, as when tasting something very sour. She puckered her lips up and pouted for a while. She puckered up her lips when she tasted the lemon juice.
pucker up
1. Lit. to tighten one's lips together into a circle as if to kiss. He puckered up and kissed her once, and then again.
2. Fig. [for something] to shrink up and get wrinkled. The material puckered up when I washed it. The top edge of the drapes puckered up and I don't know how to straighten it out.