Blade Blocked

A situation where a person attempts to use Blade Blocker as a letter opener, but a cheaper letter opener actually works. Making the Blade Blocker look ineffective.

Friend: Why are you slashing all those envelopes?
Tom: Well this blade blocked blade blocker is supposed to open them.

Block blade

Cut off contact with someone or something.
Block correspondence.

Her boyfriend was getting crazy so she had to block blade his ass!