When you miss, or airball, a free throw. The Ben Wallace Free Throw is often confused with the Shaq Free Throw. The only difference in the two is that Shaq rarely airballs the fucking shot like Ben Wallace does.
(guy 1 airballs free throw)

Guy 2: "Man, you suck. That's the 12th Ben Wallace free throw you've shot all night."
by D-Miles August 13, 2006
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