Come to think of it now, maybe it was  * f-- * moron, the guy definitely looked and had spume on his mouth as if he was saying wanker.

 The wanker bit might have been somewhere else when I was driving on the right side of the road.

I have never been  called a pufter, thank you, now that is a serious word, I would bare my teeth and raise my eye brows just slightly if anyone said that to me.