Top Definition
Male ejaculate. duh.
Eww..you got your boner batter all over my new dress!
by Figure.10 June 23, 2009
1 more definition
The act of ejaculation into the vagina and continuing the act of intercourse after words.
She was so full of boner batter she practically oozed
by Boner Batter February 11, 2011

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