Top definition
when your dickin' a girl down super good and ruff from the back. As your pounding it... look down and you will see her butt cheeks being smashed as you ram her with some more king dick. You can only use this word if indeed you do have the king dick aka big cock.
-Yo man did you bang out Ashley?
- Oh ya!... i was smashing buns with her all night long doggy dog.

-dude I'm gonna smash buns with your girl friend.
-Shut the fuck up you lil' dick pussy face. Your girl friend and your mom both said you have a lil' penis after i got done smashing buns with them.
by tony dickwood! July 10, 2009
Get the mug
Get a smashing buns mug for your cousin GΓΌnter.