After having sex with the car exhaust, It was coated in my fap juice.
by eden5900 September 5, 2003
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DUDE, hold my fap juice in your mouth, ok?

Sure thing, DUDE.
by DPsyche April 30, 2016
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Any media that inspires the urge to masturbate.
That picture of Carmen Electra is fap juice and I want to ejaculate all over her face!
by yawgm8th February 12, 2005
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That milky white stuff that your dong expels out after you're finished masturbating.
by T3h Conquerer March 14, 2011
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The very foul smelling, disgusting fluid that is unfortunately a product of nonstop female masturbation, also known as "Fapping." Fap Juice is most easily detected while temporarily sharing a home with an extremely nasty woman who has a fake online boyfriend,masturbates alot and never takes a shower.
Damn, it smells straight up like FAP JUICE in your sister's room! She must have been FAPPING ALL NIGHT LONG!
by BigCPizzle March 22, 2012
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