מדרש אויף מיכה 3:3

"she'eirah": This is her food, as in (Michah 3:3) "and who eat the she'er of My people", and (Psalms 78:27) "He rained she'er (manna) upon them as dust." (Exodus, Ibid.) "kesuthah": as stated (i.e., "her clothing"), "and onathah": her (conjugal) time, as in (Genesis 34:2) "And he lay with her and ye'anehah." These are the words of R. Yoshiyah.

5) "and you will be smitten before your foes": The pestilence will kill you from within and informers will surround you from without. "and your foes shall rule within you": I will place over you (foes) from you (i.e., from your midst) and against you. For when the nations rise against Israel they seek only what is in the open, as it is written (Shoftim 6:3) "And it was, whenever Israel would sow, that Midian and Amalek and the people of the east would rise against him. And they would encamp against them and destroy the produce of the land until you come to Azzah. And they would not leave sustenance in Israel, nor sheep nor ox nor ass." But when I place over you (foes) from you, they will seek out your hidden things, as it is written (Michah 3:3) "But you ('heads of Yaakov') have eaten the flesh of My people." "and you shall flee": out of fear; "with none pursuing you": (your) lacking power (to resist).

Another interpretation, forbidden sexual relations, as it is stated, "You have devoured My people’s flesh; You have flayed the skin off them." (Micah 3:3)