The state of not having an erection during a blowjob or handjob.
James only got a half bone when Kassi blew him.
by notyourmom March 2, 2008
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The state of a penis being in between flaccid and erect; distinctly characterized by being enlarged with blood, but not quite being hard.
"I went to an Avenged Sevenfold concert and met the band. Is it gay if I popped a half bone?"
by Slimjimsbathtub September 22, 2011
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In the middle of sex, as dude gets up to grab/check something before returning back to finish.
There goes my half-boned prince off to check his phone.
by Irohem August 22, 2020
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