Grown on Concrete 

Rude and abrupt in nature

People from New York are just mean; it's like they were grown on concrete.

Grown on Concrete by Jaubrey September 6, 2009

five times harder than concrete 

Something very difficult. Based on the rescue from the Beaconsfield gold mine in Australia where the rescuers encountered rock said to be times harder than concrete.

That exam was five times harder than concrete.

five times harder than concrete by diggler2002 September 6, 2008

Take a Concrete pill 

Harden Up

Man That Guy Needs to Take a Concrete Pills and Harden The Fuck Up

Take a Concrete pill by Rugbyfan69 June 3, 2009

Set that bitch in concrete 

When a chick gets put in a concrete form and pounded from the front and rear. Possibly from the same gentleman one end at a time, possibly not.

If matt doesn't get laid soon I'm going to set that bitch in concrete and take his tater myself.

Set that bitch in concrete by Wizard McGee April 12, 2015

African Concrete 

Rarely used name for "black tar"

Man u got the african concrete?
Hell ya G! Its chillin in my car right now.

African Concrete by [DT] April 13, 2009

Baptized in concrete 

In a fight, when someone gets slammed face first onto the concrete floor.

Man, did you see Billy fight Jimmy after school on the basketball court? Jimmy’s face was all messed up because he was baptized in concrete by Billy.

Baptized in concrete by CBR_Rider February 3, 2018

portland concrete 

When your cock gets harder than a turnbuckle

I was laying some portland concrete at my girlfriend steves house yesterday.

portland concrete by god.hates.f.a.g.s. February 10, 2019