to apply (paint etc) / to smear / to daub / to blot out / to scribble / to scrawl / (literary) mud / street
涂
=
余
+
氵
:
Someone smeared (涂) a graffiti on Tommy Turtle's (tu) sedan chair (余) just inside the space station's entrance (Ø2). Tommy Turtle tries to clean it using a bottle of water (氵).