肿
=
中
+
月
:
The moon (月) and Julian Giant Squid (zhu) are playing darts inside of the engine ((e)ng3). Right in his first turn Julian Giant Squid doesn't hit the dart board (中), but instead hits the moon's eye which starts swelling (肿) and develops into a tumor (肿).
胀
=
月
+
长
:
James II of England (zh) bumps into the moon (月) riding his longboard (长) through the anglepod's bathroom (ang4) and instantly his head starts swelling (胀).