When approached by a suspicious looking female with pig-tails and she suddenly bursts at the seams with happiness and then vomits from drinking up all the happiness that is when you know this female pulled a "Bonay" on herself. It is an unpredictable situation, exactly like the deterioration of fruit...
Darth: Hey whos that weird girl over there?

Vader: I dunno but it looks like shes about to bonay!
by Electricuted-Jelly-Knob February 05, 2010
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Bonais (Bone - Ayes) is basically a word hybrid of Boner Mayonaise, which is Semen that is ejected or discharged from an erection. If however the semen is discharged from a non-erect penis which is however Physically, Mentally, and even Technically impossible, it would most likely not be considered bonais, but seriously, if you actually managed to do that, you should go see a doctor and get that shit checked out.
Billy "Jim what are you doing in my bathroom?"

Jim "ejecting bonais from my erection"
by Dehe August 09, 2009
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