Puerto Rican Roadblock 

When 2 or more vehicles (normally trucks) lineup side by side on a highway and slow down traffic behind them while also making themselves unpassable.

Look at those 2 f******' semi's up there. We're goin' nowhere it's a Puerto Rican Roadblock!

Puerto Rican Roadblock by WHAT'S YOUR PRICE FOR FLIGHT December 28, 2011

Polish Roadblock 

Similar in technique to the Jewish Roadblock in that two or more cars drive below the speed limit across all lanes, blocking all faster traffic from passing.

The distinction between the two is that while the Jewish Roadblock is done on purpose and with every intent of slowing down every body else on the road, the Polish Roadblock is done on accident and without the blockers knowledge.

A good indication of which one you're experiencing is the reaction you get when you flash your high beams at one of the offenders. If after repeated flashings, the offender does not move over, then it is most likely a Jewish Roadblock.

GOD FUCKING DAMNIT! These mother fuckers are Jewish Roadblocking me doing 10 under!

<flashes highbeams>
<one car moves>

<offending driver does the "My Bad" wave>

Okay, I'm not as pissed now, it was only a Polish Roadblock.

Polish Roadblock by TheChimichunga December 20, 2008

Asshole Roadblock 

When you're driving on a two or more lane road and the cars in front of you are going the exact or close to exact same speed, causing a very annoying vehicular roadblock.

(on the phone) "I'll be there soon, i'm just waiting for this damn asshole roadblock to clear up!"

Asshole Roadblock by Sassy Steve August 1, 2011

Road Blow 

The process of having your penis blown by your favorite slut while driving your car.

Shaun:Yo dude i heard you got some road blow yesterday.
Josh:Yeah man that slut latoya was all up on my wang yesterday!

Road Blow by shaun/josh September 7, 2006

roadblockhead 

Someone who refuses to keep up with the traffic flow or move to the right.

I was late for work because I got stuck behind a real roadblockhead.

roadblockhead by writnstuff January 26, 2010

Roadblock 

When you get cock blocked by the morning corkscrew.

Woke up and tried to fuck my girlfriend only to be roadblocked by the morning corkscrew

Roadblock by uandus January 21, 2020

Amish Roadblock

When two cars stay parallel to each other on a two-lane highway, preventing any cars behind them from passing and getting ahead.

Jesse: How are you doing up there?
Trevor: Good! I just got passed by a little blue car after he had been flashing his lights at me for awhile, but then the two cars ahead of me Amish Roadblocked him and he couldn't get any farther ahead.

Amish Roadblock by Bobbythunder May 11, 2015