Needing help with a symbol.

[terrif]

Well I am starting to write an essay and I need help with a symbol, i need something that is pure and once something happens to it, it cant undo or change.

An example would be water. once it is tainted, it can't go back to being pure.

 

[Dustein]

Your mom.

 

[The Word Alive]

Your mom.

//win.

 

[wtp]

You're thinking of a chemical change:
http://en.wikipedia.org/wiki/Chemical_change

You can make tainted water pure.

 

[Alteranz]

tainted love
http://en.wikipedia.org/wiki/Tainted_Love

virginity