When you are fucking a girl from behind, grab an electric hair trimmer to remove a square inch patch on the back of her head. Once you've reached climax, bust your load onto the hairless patch and glue the hair back on.
Mike - "I got fucking shitfaced and accidentally gave my girlfriend the toupee"
Joe - "Dude I toupeed the piss out of this chick at a party the other night"
A hair piece that is worn on the head, usually used by elderly men to hide bald spots. Can be used by unfortunate women for the same reason, or for theatrical purposes.
A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.