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2.
The act of cock-blocking as compared to the Israeli defense method. I.e. using anti strike missiles to shoot down enemy fire
I got iron domed in my own domicile just because I only had 20 and the lady of the night wanted 25.... She said no....

"dude... What the fuck, go home your iron doming me"

I got the iron dome
by e-lew February 17, 2013
 
1.
A major cock block
"Dude last night Ben told jenny I'm gay!"
"Oh dude jenny iron domed you!"
by Porky July 10, 2014