to clean the floor / (Internet slang) (lit.) to wash (the blood) off the floor / (fig.) to cover up evidence of sb's wrongdoing / to defend (a wrongdoer) / (coll.) to carpet-bomb
earth / ground / field / place / land / CL:片[pian4]
地
=
也
+
土
:
Dorothy Gale (di) hates the cleanliness of the space station, so she used an excavator (也) in the space station's bathroom (Ø4) to dig a pile of dirt (土) out of the ground (地) for a mud bath.