The lazy act of pretending to ejeculate on a partner's back by dribbling spit at the crucial moment. Mainly practiced when boredom or monotony has set into the act. Originates from austra-croatian deviant.
I was getting bored because she was taking an age to cum, so I performed the Spittin Bronko and went off to the fridge for a beer...
When your ass fucking a girl doggy style, you suddenly grab her hips and bury yourself deep in her butt and loudly call out your old girlfriend’s name, and as the pissed off girl tries to buck you off you hold on and let out your bestcowboy yell and scream “Yippie Kai Yea!!”
“So why is Billy walking funny today!” “Poor guy got kicked hard in the nuts while bronco fucking Emily last night.”