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When you are desperately texting a girl and she never responds, causing a wall of blue on your phone screen.

Also can be called "green walling" for peeps not using an iphone.
"Yo Cody, who you blue walling nowadays?"
"No one bro, every girl I text responds"
"Show me your phone then"
"Naw fam, it's dead"
by RAM23 August 27, 2016
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