Or a reference to oxidation, the process by which rust is formed…

bitpush 3 days ago | parent | next [-]

And also prOXY. Works in many levels.

hiccuphippo 3 days ago | parent | prev | next [-]

Or simply oxygen.

or oxytocin

or oxymoron

	▲	NaomiLehman 2 days ago \| parent [-]
		that's funny :)