An extremely high risk. dirty inferring not being very good, or remotely safe.
Guy 1: Yo man I just invested $500,000 in GM
Guy 2: Are you dumb, thats dirty risks!
A chemical reaction in the body that posses a woman or man to all of a sudden be horny, sexual, aroused or flirty.
Girl 1: Damn that guy is soo hot!
Girl 2 : Relax, its just your whormones!
Guy: I just screwed a random girl at the bar last night
Guy 2: Blame it on your whormones!