this is when a girl spanks your balls while you wank, if she uses spanker cream your cock and balls will be replaced by a vagina.
"Hey Aidan, it's time for your spankerwanking!"
"Please no.."
"We made a bet."
"Let me just get the Spanker Cream"
*Slaps the balls again and again*
"What the fuck is happening to my penis and balls!?"
"I love the look on your face!"
*Aidan see that he now has a vagina*
"Wait, I am growing D-Cups!"
"Enjoy the boobs too!"
"Noooo!"
though there is not an exact definition for the word it is usually used as a reference to something of a sexual nature. it generally means someone erotic.
"hey hows micheal doing did you get with him"
"oh ya i did he's such a fucking cow spanker"
Someone who tucks their jeans inside of their boots. Often used for the purpose of placing the hind legs of a goat inside the boot to have sex with it.
Bubba: “whys he wearing his boots like that?”
Jim bo: “guys a goat spanker”