Meaning

• The soft skin on each side of the face, below the eyes; the outer surface of the sides of the oral cavity.

• (usually in the plural) The lower part of the buttocks that is often exposed beneath very brief underwear, swimwear, or extremely short shorts.

• Impudence.

  "You’ve got some cheek, asking me for money!"

• One of the genae, flat areas on the sides of a trilobite's cephalon.

• One of the pieces of a machine, or of timber or stonework, that form corresponding sides or a similar pair.

  "the cheeks of a vice; the cheeks of a gun carriage"

• (in plural) The branches of a bridle bit.

• Either side of an axehead.

• The middle section of a flask, made so that it can be moved laterally, to permit the removal of the pattern from the mould.

Meaning

• To be impudent towards.

  "Don't cheek me, you little rascal!"

• To pull a horse's head back toward the saddle using the cheek strap of the bridle.