Someone who is a master at blocking large amounts of cum much like the Bruce Lee is a master at martial arts.
Nobody can have sex with Jim because he is a master cum blocker.
by The Dinkster March 1, 2016
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Someone who resorts to censorship instead of using better words.
Censorship is for children
"Censorship is telling a man he can't have a steak because a baby can't chew it " Twain

Don't be a Master blocker
by Dr.Crow January 8, 2023
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