You say that someone has a cheek when you are annoyed or shocked at something unreasonable that they have done. I'm amazed they had the cheek to ask in the first place I still think it's a bit of a cheek sending a voucher rather than a refund The cheek of it, lying to me like that!
Your cheeks are the sides of your face below your eyes. Tears were running down her cheeks She kissed him lightly on both cheeks. + -cheeked -cheeked rosy-cheeked children
A section of a flask, so made that it can be moved laterally, to permit the removal of the pattern from the mold; the middle part of a flask