screw up (your) face

to make an unpleasant expression with your face.

“This milk is sour,” she said, screwing up her face.

• refer to someone
• refer to someone as
• refer to someone as someone
• refer to someone as something
• refer to something
• refer to something as
• refer to something as someone
• refer to something as something
• reflect on
• reflect on someone
• reflect on something
• refresh memory
• refresh your memory
• regardless of
• regardless of something
• reign of terror
• rein in
• rein in someone
• rein in something
• reinvent the wheel
• relate to
• relate to someone
• relate to something
• relax the reins
• relieve of