What is the meaning of "Azeinecha"?
Rashi and Rashbam: It means 'your other household articles'.
Targum Onkelos and Targum Yonasan: It means the place where you hang your weapons.
Since excrement is not Tamei, why does it need to be covered?
Ramban #1 (on Pasuk 11): Refer to 23:11:2:2*.
Ramban #2: They need to be covered because one is forbidden to see it during Davening and whilst one's mind is focused on Hashem, since seeing things that are disgusting tarnish the Soul and disrupt one's concentration.