This is a part of a song named Fools by Australian singer Troye Sivan. I don’t get the meaning of the third line. I get the literal meaning of stick and aerosol, but I don’t think a piece of wood and some pressurized liquid makes any sense here. So what are stick and aerosol, then?
Oh, our lives don’t collide, I’m aware of this
The differences and impulses and your obsession with
the little things: you like stick, and I like aerosol