The exchange rate between the words used in the "I don't give a ___" phrase. In a recent treaty between all English-speaking nations, it has been determined that there are:
2.71828183 shits per one fuck
3.14159265 damns per one shit
and 5.02734907 x 10^5 hoots per one damn
Brett: You see that cloud up there? It doesn't give a fuck about your existence _or 2.71828183 shits or 3.14159265 damns or 5.02734907 x 10^5 hoots.
Alex: Wow, you know the entire hoot-damn-shit-fuck exchange rate.
Boy: I don't give two fucks about your feelings!
Girl: wow you really don't care about me