HETERO-FLEXIBLE, SAY WHAT????

I ran across this word while listening to a radio show, and found it to be quiet interesting. Now what does this word mean? I tried to look it up to see if it was an actual word but it is another made up word started by somebody.So from what I have heard, this word means that you are a flexible heterosexual who engages in promiscuous behavior. Also you are known to be bi-sexual or bi-curious. How many people will embrace this word and will consider themselves to be this way. Bi-curious is another word which means you are curious about being bi-sexual, I mean who comes up with this stuff. Nonetheless I find HETERO-FLEXIBLE to be a word that can mean you are flexible when it comes to heterosexual relationships and not so much that you are bi-sexual. Anyway I found this to be an interesting word. What do you think?