This is purely a sexual term for a homosexual male couple's act;It refers to the act of squeezing fecal matter from the hole of the penis into the eyes of your partner and then into the mouth. It is derived from the "dirty" nature of the poop and the nature of the word "hunt" for a "man", hence huntsman.
It is done while or right after an orgasm, this enhances the taste associated with the shit in the eyes and mouth.
I gave my lover a dirty hunts-man, and he loved it.
This is a word describing the insurgence of a "hard on" or enlargement of the penis or clitoris while engaging in the act of looking at sexual content online. The "e" portion stands for electronic, the "rection" portion stands for enlarged.
I got an e-rection while browsing online at beautiful models.