Butthead
I bet the expression you're thinking of is "hit the nail on the head" which has to do with striking a hammer against a nail perfectly on target. So the expression means to say something that really thoroughly answered the question. Maybe "hitting the rail on the head" is just a Mondegreen.See related question below for information about Mondegreens.
Pummel, strike.
hit
It means to run or to hit hard from getting away.
It basically means for the person it was directed at to leave. In the past roads were made of brick. So, "hit the bricks" is the same as saying "hit the road".
bump, conk
It means that you've gotten it exactly correct. Another way to say that would be "You've hit the nail on the head."
it means you hit your head XDF
It is to butt.
A blow to the head means the same as 'struck on the head' or 'hit on the head', usually with something heavy.
"Hit" is another name for it.
It's "to hit the NAIL on the head"It means that the person who you are speaking to agrees 100% EXACTLY what you are saying.
smh means: Shaking my head, hmu means: Hit me up.
It means to use the bathroom. Head is slang for the toilet.
hay as in "hit the hay"
It means they have been hurt or hit on the head. Hope this helps Emily
It means you have had too much to drink, have passed out, and have hit your head on your computer keyboard.