塞
=
基
+
宀
:
Socrates (s) wanted to get rid of his graduation cap (宀) and threw it in the elevator's toilet (e4), but now it is clogged (塞). He'll have to dig up the foundation (基) to clear the pipes.
a Chinese foot / one-third of a meter / a ruler / a tape-measure / one of the three acupoints for measuring pulse in Chinese medicine / CL:支[zhi1],把[ba3]