by Travis McCown June 16, 2008

by G. Pat Meade August 4, 2008

by F.P27 April 10, 2022

Slang term used to describe an item or object that's flipin awesome - something that you'd swap an arm or your own granny for. Comes from the British luxury brand that specialises in making concrete furniture and brick wall for graffiti artists. The brand is well known in London for the concrete door stops it leaves around the city for people to find.
If your mate had a concrete doorstop with a steel handle or a flying car that doubled as a submarine you'd say 'that's totally jonny concrete man'.
by bunchofbananas January 17, 2019

Slang term used to describe an item or object that's flipin awesome - something that you'd swap an arm or your own granny for. Comes from the British luxury brand that specialises in making concrete furniture and brick wall for graffiti artists. The brand is well known in London for the concrete door stops it leaves around the city for people to find.
If your mate had a concrete doorstop with a steel handle or a flying car that doubled as a submarine you'd say 'that's totally johnny concrete man'.
by bunchofbananas January 22, 2019

Concrete sex is when a man is giving anal and knocks the person receiving the anal out. As they have knocked them out the muscles in the anus grow tight and trap your penis inside the anus until the receiving person wake up.
I was having Concrete Sex with jenny the other day and I knocked her out cold for 30mins. Mate my dick went numb
by Calhayes1 May 10, 2014

by gammarock February 25, 2005
