When a man's masturbated so many times in a day that he can no longer get a full erection, but still manages to ejaculate.
"Dude, the soft nut is my favorite nut to bust."
by BlasphemingGod October 8, 2013
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ejaculation so premature, an erection isnt present
Lisa, I dont know what happened i just touched his leg and he busted a soft nut on me.
by IAmBlueSteel October 20, 2008
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soft nut occurs when a person is flaccid and expierences ejaculation caused by someone, something, or some word.
lost1-yo dude did you jus see her ass.?

enzo2-dude i think i jus soft nutted on myself

lost1- dang..
by enzotwocov September 28, 2009
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