(~s)
1.
You can refer to someone’s lower cheeks as their ~s, especially when they hang down towards their jaw. (LITERARY)
N-COUNT: usu pl
2.
If you say that people or things are cheek by ~ with each other, you are indicating that they are very close to each other.
She and her family have to live cheek by ~ with these people.
PHRASE: usu v PHR, v-link PHR, PHR n, oft PHR with n