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
Someone who thinks they are hard and can beat anyone up when they turn out to be a sissy who couldn't beat an egg.
by Josh Kelly October 15, 2007
UK slang: Sometimes called 'Ten Men' or 'Billy Big Bollocks' Is an unconfident male who's only asset is their physical size. They use bravado to hide their inadequacies as a male. However many suffer from the human variant of 'small dog syndrome' and are in fact smaller in stature than they believe themselves to be. They waste money watching pay per view Boxing matches and MMA fighting on Sky Sports and delude themselves into believing they can do it. Because they are emotionally immature they are most aggressive watching such crap in pubs with their equally dumbass friends whilst of their bonce on coke. Tellingly will only bully other males they believe are weak. Typically a coward. If someone half their size stands up to them there's a good chance they'll have their ass beat or will back down. They'll make a lot of noise to get your attention so you look over to give them an avenue to make eye contact so they can instigate a confrontation for looking at them.
Oy!! Are you looking at my ex girlfriends sisters pint!!!
Ignore the prick he's just being a Johnny concrete.
Ignore the prick he's just being a Johnny concrete.
by Melloj1 September 2, 2021