People open their mouths to jeer at me; they strike my cheek in scorn and unite together against me.
OJBThey have struck at me with their mouth; they have struck me upon the lekhi (cheek) reproachfully; they have conspired themselves together against me.
T4TPeople gape/stare at me with their mouths open to sneer at me; they have struck me on the face/cheek to ridicule me, and they crowd around me to threaten me.